Home / 724,911.40-1,087,367.10-538,287.40

Finding the Fourth Proportional to 724,911.40, 1,087,367.10 and 538,287.40

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Solution

The fourth proportional to 724,911.40, 1,087,367.10 and 538,287.40 is: 807,431.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,911.40 : 1,087,367.10 = 538,287.40 : x
  2. Step 2: Convert to fraction form
    724,911.40/1,087,367.10 = 538,287.40/x
  3. Step 3: Cross multiply
    724,911.40x = 1,087,367.10 × 538,287.40
  4. Step 4: Simplify right side
    724,911.40x = 585,316,009,104.54
  5. Step 5: Solve for x
    x = 585,316,009,104.54/724,911.40
  6. Step 6: Final answer
    x = 807,431.10

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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.