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Finding the Fourth Proportional to 550,419.40, 825,629.10 and 507,116.80

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Solution

The fourth proportional to 550,419.40, 825,629.10 and 507,116.80 is: 760,675.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    550,419.40 : 825,629.10 = 507,116.80 : x
  2. Step 2: Convert to fraction form
    550,419.40/825,629.10 = 507,116.80/x
  3. Step 3: Cross multiply
    550,419.40x = 825,629.10 × 507,116.80
  4. Step 4: Simplify right side
    550,419.40x = 418,690,387,178.88
  5. Step 5: Solve for x
    x = 418,690,387,178.88/550,419.40
  6. Step 6: Final answer
    x = 760,675.20

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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.