Home / 719,987.20-1,079,980.80-707,545.60

Finding the Fourth Proportional to 719,987.20, 1,079,980.80 and 707,545.60

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Solution

The fourth proportional to 719,987.20, 1,079,980.80 and 707,545.60 is: 1,061,318.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,987.20 : 1,079,980.80 = 707,545.60 : x
  2. Step 2: Convert to fraction form
    719,987.20/1,079,980.80 = 707,545.60/x
  3. Step 3: Cross multiply
    719,987.20x = 1,079,980.80 × 707,545.60
  4. Step 4: Simplify right side
    719,987.20x = 764,135,663,124.48
  5. Step 5: Solve for x
    x = 764,135,663,124.48/719,987.20
  6. Step 6: Final answer
    x = 1,061,318.40

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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.