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Finding the Fourth Proportional to 717,711.03, 990,333.14 and 407,565.27

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Solution

The fourth proportional to 717,711.03, 990,333.14 and 407,565.27 is: 562,378.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    717,711.03 : 990,333.14 = 407,565.27 : x
  2. Step 2: Convert to fraction form
    717,711.03/990,333.14 = 407,565.27/x
  3. Step 3: Cross multiply
    717,711.03x = 990,333.14 × 407,565.27
  4. Step 4: Simplify right side
    717,711.03x = 403,625,391,556.22
  5. Step 5: Solve for x
    x = 403,625,391,556.22/717,711.03
  6. Step 6: Final answer
    x = 562,378.69

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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.