Home / 782,228.17-1,079,385.65-438,016.24

Finding the Fourth Proportional to 782,228.17, 1,079,385.65 and 438,016.24

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Solution

The fourth proportional to 782,228.17, 1,079,385.65 and 438,016.24 is: 604,412.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    782,228.17 : 1,079,385.65 = 438,016.24 : x
  2. Step 2: Convert to fraction form
    782,228.17/1,079,385.65 = 438,016.24/x
  3. Step 3: Cross multiply
    782,228.17x = 1,079,385.65 × 438,016.24
  4. Step 4: Simplify right side
    782,228.17x = 472,788,444,724.67
  5. Step 5: Solve for x
    x = 472,788,444,724.67/782,228.17
  6. Step 6: Final answer
    x = 604,412.45

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.