Home / 781,543.50-1,078,530.03-442,004.46

Finding the Fourth Proportional to 781,543.50, 1,078,530.03 and 442,004.46

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Solution

The fourth proportional to 781,543.50, 1,078,530.03 and 442,004.46 is: 609,966.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,543.50 : 1,078,530.03 = 442,004.46 : x
  2. Step 2: Convert to fraction form
    781,543.50/1,078,530.03 = 442,004.46/x
  3. Step 3: Cross multiply
    781,543.50x = 1,078,530.03 × 442,004.46
  4. Step 4: Simplify right side
    781,543.50x = 476,715,083,503.93
  5. Step 5: Solve for x
    x = 476,715,083,503.93/781,543.50
  6. Step 6: Final answer
    x = 609,966.15

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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.