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Finding the Fourth Proportional to 655,510.76, 904,691.14 and 369,086.84

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Solution

The fourth proportional to 655,510.76, 904,691.14 and 369,086.84 is: 509,388.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,510.76 : 904,691.14 = 369,086.84 : x
  2. Step 2: Convert to fraction form
    655,510.76/904,691.14 = 369,086.84/x
  3. Step 3: Cross multiply
    655,510.76x = 904,691.14 × 369,086.84
  4. Step 4: Simplify right side
    655,510.76x = 333,909,594,038.60
  5. Step 5: Solve for x
    x = 333,909,594,038.60/655,510.76
  6. Step 6: Final answer
    x = 509,388.43

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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.