Home / 760,520.40-1,141,106.76-361,443.12

Finding the Fourth Proportional to 760,520.40, 1,141,106.76 and 361,443.12

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Solution

The fourth proportional to 760,520.40, 1,141,106.76 and 361,443.12 is: 542,319.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    760,520.40 : 1,141,106.76 = 361,443.12 : x
  2. Step 2: Convert to fraction form
    760,520.40/1,141,106.76 = 361,443.12/x
  3. Step 3: Cross multiply
    760,520.40x = 1,141,106.76 × 361,443.12
  4. Step 4: Simplify right side
    760,520.40x = 412,445,187,587.49
  5. Step 5: Solve for x
    x = 412,445,187,587.49/760,520.40
  6. Step 6: Final answer
    x = 542,319.69

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Double scale
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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.