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Finding the Fourth Proportional to 655,489.58, 904,593.12 and 369,020.54

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Solution

The fourth proportional to 655,489.58, 904,593.12 and 369,020.54 is: 509,258.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,489.58 : 904,593.12 = 369,020.54 : x
  2. Step 2: Convert to fraction form
    655,489.58/904,593.12 = 369,020.54/x
  3. Step 3: Cross multiply
    655,489.58x = 904,593.12 × 369,020.54
  4. Step 4: Simplify right side
    655,489.58x = 333,813,441,622.69
  5. Step 5: Solve for x
    x = 333,813,441,622.69/655,489.58
  6. Step 6: Final answer
    x = 509,258.20

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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.