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Finding the Fourth Proportional to 587,240.20, 880,860.30 and 487,599.40

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Solution

The fourth proportional to 587,240.20, 880,860.30 and 487,599.40 is: 731,399.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    587,240.20 : 880,860.30 = 487,599.40 : x
  2. Step 2: Convert to fraction form
    587,240.20/880,860.30 = 487,599.40/x
  3. Step 3: Cross multiply
    587,240.20x = 880,860.30 × 487,599.40
  4. Step 4: Simplify right side
    587,240.20x = 429,506,953,763.82
  5. Step 5: Solve for x
    x = 429,506,953,763.82/587,240.20
  6. Step 6: Final answer
    x = 731,399.10

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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.