Home / 712,948.20-1,069,422.30-461,005.80

Finding the Fourth Proportional to 712,948.20, 1,069,422.30 and 461,005.80

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Solution

The fourth proportional to 712,948.20, 1,069,422.30 and 461,005.80 is: 691,508.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    712,948.20 : 1,069,422.30 = 461,005.80 : x
  2. Step 2: Convert to fraction form
    712,948.20/1,069,422.30 = 461,005.80/x
  3. Step 3: Cross multiply
    712,948.20x = 1,069,422.30 × 461,005.80
  4. Step 4: Simplify right side
    712,948.20x = 493,009,882,949.34
  5. Step 5: Solve for x
    x = 493,009,882,949.34/712,948.20
  6. Step 6: Final answer
    x = 691,508.70

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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.