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Finding the Fourth Proportional to 717,373.80, 990,083.48 and 545,008.13

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Solution

The fourth proportional to 717,373.80, 990,083.48 and 545,008.13 is: 752,192.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,373.80 : 990,083.48 = 545,008.13 : x
  2. Step 2: Convert to fraction form
    717,373.80/990,083.48 = 545,008.13/x
  3. Step 3: Cross multiply
    717,373.80x = 990,083.48 × 545,008.13
  4. Step 4: Simplify right side
    717,373.80x = 539,603,538,303.23
  5. Step 5: Solve for x
    x = 539,603,538,303.23/717,373.80
  6. Step 6: Final answer
    x = 752,192.98

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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.