Home / 700,711.13-966,981.31-378,421.18

Finding the Fourth Proportional to 700,711.13, 966,981.31 and 378,421.18

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Solution

The fourth proportional to 700,711.13, 966,981.31 and 378,421.18 is: 522,221.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    700,711.13 : 966,981.31 = 378,421.18 : x
  2. Step 2: Convert to fraction form
    700,711.13/966,981.31 = 378,421.18/x
  3. Step 3: Cross multiply
    700,711.13x = 966,981.31 × 378,421.18
  4. Step 4: Simplify right side
    700,711.13x = 365,926,205,004.64
  5. Step 5: Solve for x
    x = 365,926,205,004.64/700,711.13
  6. Step 6: Final answer
    x = 522,221.20

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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.