Home / 728,720.60-1,093,080.90-576,505.40

Finding the Fourth Proportional to 728,720.60, 1,093,080.90 and 576,505.40

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Solution

The fourth proportional to 728,720.60, 1,093,080.90 and 576,505.40 is: 864,758.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,720.60 : 1,093,080.90 = 576,505.40 : x
  2. Step 2: Convert to fraction form
    728,720.60/1,093,080.90 = 576,505.40/x
  3. Step 3: Cross multiply
    728,720.60x = 1,093,080.90 × 576,505.40
  4. Step 4: Simplify right side
    728,720.60x = 630,167,041,486.86
  5. Step 5: Solve for x
    x = 630,167,041,486.86/728,720.60
  6. Step 6: Final answer
    x = 864,758.10

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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.