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Finding the Fourth Proportional to 602,809.45, 832,567.45 and 396,997.87

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Solution

The fourth proportional to 602,809.45, 832,567.45 and 396,997.87 is: 548,311.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,809.45 : 832,567.45 = 396,997.87 : x
  2. Step 2: Convert to fraction form
    602,809.45/832,567.45 = 396,997.87/x
  3. Step 3: Cross multiply
    602,809.45x = 832,567.45 × 396,997.87
  4. Step 4: Simplify right side
    602,809.45x = 330,527,502,287.81
  5. Step 5: Solve for x
    x = 330,527,502,287.81/602,809.45
  6. Step 6: Final answer
    x = 548,311.75

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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.