Home / 607,655.12-911,677.40-425,475.68

Finding the Fourth Proportional to 607,655.12, 911,677.40 and 425,475.68

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Solution

The fourth proportional to 607,655.12, 911,677.40 and 425,475.68 is: 638,349.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    607,655.12 : 911,677.40 = 425,475.68 : x
  2. Step 2: Convert to fraction form
    607,655.12/911,677.40 = 425,475.68/x
  3. Step 3: Cross multiply
    607,655.12x = 911,677.40 × 425,475.68
  4. Step 4: Simplify right side
    607,655.12x = 387,896,558,210.93
  5. Step 5: Solve for x
    x = 387,896,558,210.93/607,655.12
  6. Step 6: Final answer
    x = 638,349.86

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.