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Finding the Fourth Proportional to 655,471.64, 904,567.64 and 369,001.78

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Solution

The fourth proportional to 655,471.64, 904,567.64 and 369,001.78 is: 509,231.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    655,471.64 : 904,567.64 = 369,001.78 : x
  2. Step 2: Convert to fraction form
    655,471.64/904,567.64 = 369,001.78/x
  3. Step 3: Cross multiply
    655,471.64x = 904,567.64 × 369,001.78
  4. Step 4: Simplify right side
    655,471.64x = 333,787,065,183.97
  5. Step 5: Solve for x
    x = 333,787,065,183.97/655,471.64
  6. Step 6: Final answer
    x = 509,231.89

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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.