Home / 724,730.88-1,087,470-325,649.28

Finding the Fourth Proportional to 724,730.88, 1,087,470 and 325,649.28

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Solution

The fourth proportional to 724,730.88, 1,087,470 and 325,649.28 is: 488,641.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,730.88 : 1,087,470 = 325,649.28 : x
  2. Step 2: Convert to fraction form
    724,730.88/1,087,470 = 325,649.28/x
  3. Step 3: Cross multiply
    724,730.88x = 1,087,470 × 325,649.28
  4. Step 4: Simplify right side
    724,730.88x = 354,133,822,521.60
  5. Step 5: Solve for x
    x = 354,133,822,521.60/724,730.88
  6. Step 6: Final answer
    x = 488,641.83

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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.