Home / 947,520.20-1,307,810.25-539,862.59

Finding the Fourth Proportional to 947,520.20, 1,307,810.25 and 539,862.59

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Solution

The fourth proportional to 947,520.20, 1,307,810.25 and 539,862.59 is: 745,142.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    947,520.20 : 1,307,810.25 = 539,862.59 : x
  2. Step 2: Convert to fraction form
    947,520.20/1,307,810.25 = 539,862.59/x
  3. Step 3: Cross multiply
    947,520.20x = 1,307,810.25 × 539,862.59
  4. Step 4: Simplify right side
    947,520.20x = 706,037,822,254.50
  5. Step 5: Solve for x
    x = 706,037,822,254.50/947,520.20
  6. Step 6: Final answer
    x = 745,142.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.