Home / 781,853.18-1,079,059.05-437,820.12

Finding the Fourth Proportional to 781,853.18, 1,079,059.05 and 437,820.12

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Solution

The fourth proportional to 781,853.18, 1,079,059.05 and 437,820.12 is: 604,248.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    781,853.18 : 1,079,059.05 = 437,820.12 : x
  2. Step 2: Convert to fraction form
    781,853.18/1,079,059.05 = 437,820.12/x
  3. Step 3: Cross multiply
    781,853.18x = 1,079,059.05 × 437,820.12
  4. Step 4: Simplify right side
    781,853.18x = 472,433,762,758.09
  5. Step 5: Solve for x
    x = 472,433,762,758.09/781,853.18
  6. Step 6: Final answer
    x = 604,248.70

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1.5x scale

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.