Home / 760,521.78-1,141,904.10-424,219.50

Finding the Fourth Proportional to 760,521.78, 1,141,904.10 and 424,219.50

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Solution

The fourth proportional to 760,521.78, 1,141,904.10 and 424,219.50 is: 636,954.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,521.78 : 1,141,904.10 = 424,219.50 : x
  2. Step 2: Convert to fraction form
    760,521.78/1,141,904.10 = 424,219.50/x
  3. Step 3: Cross multiply
    760,521.78x = 1,141,904.10 × 424,219.50
  4. Step 4: Simplify right side
    760,521.78x = 484,417,986,349.95
  5. Step 5: Solve for x
    x = 484,417,986,349.95/760,521.78
  6. Step 6: Final answer
    x = 636,954.78

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Half scale
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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.