Home / 728,689.60-1,093,034.40-576,474.40

Finding the Fourth Proportional to 728,689.60, 1,093,034.40 and 576,474.40

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Solution

The fourth proportional to 728,689.60, 1,093,034.40 and 576,474.40 is: 864,711.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    728,689.60 : 1,093,034.40 = 576,474.40 : x
  2. Step 2: Convert to fraction form
    728,689.60/1,093,034.40 = 576,474.40/x
  3. Step 3: Cross multiply
    728,689.60x = 1,093,034.40 × 576,474.40
  4. Step 4: Simplify right side
    728,689.60x = 630,106,349,919.36
  5. Step 5: Solve for x
    x = 630,106,349,919.36/728,689.60
  6. Step 6: Final answer
    x = 864,711.60

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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.