Home / 872,534.20-1,307,246.10-539,721.40

Finding the Fourth Proportional to 872,534.20, 1,307,246.10 and 539,721.40

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Solution

The fourth proportional to 872,534.20, 1,307,246.10 and 539,721.40 is: 808,620.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,534.20 : 1,307,246.10 = 539,721.40 : x
  2. Step 2: Convert to fraction form
    872,534.20/1,307,246.10 = 539,721.40/x
  3. Step 3: Cross multiply
    872,534.20x = 1,307,246.10 × 539,721.40
  4. Step 4: Simplify right side
    872,534.20x = 705,548,695,236.54
  5. Step 5: Solve for x
    x = 705,548,695,236.54/872,534.20
  6. Step 6: Final answer
    x = 808,620.10

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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.