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Finding the Fourth Proportional to 649,660.80, 973,108.80 and 539,068.80

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Solution

The fourth proportional to 649,660.80, 973,108.80 and 539,068.80 is: 807,456.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,660.80 : 973,108.80 = 539,068.80 : x
  2. Step 2: Convert to fraction form
    649,660.80/973,108.80 = 539,068.80/x
  3. Step 3: Cross multiply
    649,660.80x = 973,108.80 × 539,068.80
  4. Step 4: Simplify right side
    649,660.80x = 524,572,593,085.44
  5. Step 5: Solve for x
    x = 524,572,593,085.44/649,660.80
  6. Step 6: Final answer
    x = 807,456.13

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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.