Home / 709,044.20-1,063,566.30-520,087.40

Finding the Fourth Proportional to 709,044.20, 1,063,566.30 and 520,087.40

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Solution

The fourth proportional to 709,044.20, 1,063,566.30 and 520,087.40 is: 780,131.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    709,044.20 : 1,063,566.30 = 520,087.40 : x
  2. Step 2: Convert to fraction form
    709,044.20/1,063,566.30 = 520,087.40/x
  3. Step 3: Cross multiply
    709,044.20x = 1,063,566.30 × 520,087.40
  4. Step 4: Simplify right side
    709,044.20x = 553,147,431,694.62
  5. Step 5: Solve for x
    x = 553,147,431,694.62/709,044.20
  6. Step 6: Final answer
    x = 780,131.10

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Double scale
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Similar ratio
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1.5x scale

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.