Home / 653,849.87-902,715.37-518,430.83

Finding the Fourth Proportional to 653,849.87, 902,715.37 and 518,430.83

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Solution

The fourth proportional to 653,849.87, 902,715.37 and 518,430.83 is: 715,753.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,849.87 : 902,715.37 = 518,430.83 : x
  2. Step 2: Convert to fraction form
    653,849.87/902,715.37 = 518,430.83/x
  3. Step 3: Cross multiply
    653,849.87x = 902,715.37 × 518,430.83
  4. Step 4: Simplify right side
    653,849.87x = 467,995,472,713.20
  5. Step 5: Solve for x
    x = 467,995,472,713.20/653,849.87
  6. Step 6: Final answer
    x = 715,753.72

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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.