Home / 678,724.05-1,017,293.90-499,572.30

Finding the Fourth Proportional to 678,724.05, 1,017,293.90 and 499,572.30

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Solution

The fourth proportional to 678,724.05, 1,017,293.90 and 499,572.30 is: 748,775.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    678,724.05 : 1,017,293.90 = 499,572.30 : x
  2. Step 2: Convert to fraction form
    678,724.05/1,017,293.90 = 499,572.30/x
  3. Step 3: Cross multiply
    678,724.05x = 1,017,293.90 × 499,572.30
  4. Step 4: Simplify right side
    678,724.05x = 508,211,850,901.11
  5. Step 5: Solve for x
    x = 508,211,850,901.11/678,724.05
  6. Step 6: Final answer
    x = 748,775.37

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1.5x scale

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.