Home / 1,025,209.20-1,539,077.40-646,129.20

Finding the Fourth Proportional to 1,025,209.20, 1,539,077.40 and 646,129.20

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Solution

The fourth proportional to 1,025,209.20, 1,539,077.40 and 646,129.20 is: 969,990.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,025,209.20 : 1,539,077.40 = 646,129.20 : x
  2. Step 2: Convert to fraction form
    1,025,209.20/1,539,077.40 = 646,129.20/x
  3. Step 3: Cross multiply
    1,025,209.20x = 1,539,077.40 × 646,129.20
  4. Step 4: Simplify right side
    1,025,209.20x = 994,442,849,200.08
  5. Step 5: Solve for x
    x = 994,442,849,200.08/1,025,209.20
  6. Step 6: Final answer
    x = 969,990.17

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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.