Home / 975,135.68-1,345,654.67-539,553.86

Finding the Fourth Proportional to 975,135.68, 1,345,654.67 and 539,553.86

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Solution

The fourth proportional to 975,135.68, 1,345,654.67 and 539,553.86 is: 744,566.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    975,135.68 : 1,345,654.67 = 539,553.86 : x
  2. Step 2: Convert to fraction form
    975,135.68/1,345,654.67 = 539,553.86/x
  3. Step 3: Cross multiply
    975,135.68x = 1,345,654.67 × 539,553.86
  4. Step 4: Simplify right side
    975,135.68x = 726,053,161,999.48
  5. Step 5: Solve for x
    x = 726,053,161,999.48/975,135.68
  6. Step 6: Final answer
    x = 744,566.30

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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.