Home / 759,405.13-1,138,545.28-459,815.29

Finding the Fourth Proportional to 759,405.13, 1,138,545.28 and 459,815.29

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Solution

The fourth proportional to 759,405.13, 1,138,545.28 and 459,815.29 is: 689,382.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,405.13 : 1,138,545.28 = 459,815.29 : x
  2. Step 2: Convert to fraction form
    759,405.13/1,138,545.28 = 459,815.29/x
  3. Step 3: Cross multiply
    759,405.13x = 1,138,545.28 × 459,815.29
  4. Step 4: Simplify right side
    759,405.13x = 523,520,528,101.33
  5. Step 5: Solve for x
    x = 523,520,528,101.33/759,405.13
  6. Step 6: Final answer
    x = 689,382.40

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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.