Home / 969,843.61-1,338,425.69-540,123.74

Finding the Fourth Proportional to 969,843.61, 1,338,425.69 and 540,123.74

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Solution

The fourth proportional to 969,843.61, 1,338,425.69 and 540,123.74 is: 745,393.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    969,843.61 : 1,338,425.69 = 540,123.74 : x
  2. Step 2: Convert to fraction form
    969,843.61/1,338,425.69 = 540,123.74/x
  3. Step 3: Cross multiply
    969,843.61x = 1,338,425.69 × 540,123.74
  4. Step 4: Simplify right side
    969,843.61x = 722,915,480,002.13
  5. Step 5: Solve for x
    x = 722,915,480,002.13/969,843.61
  6. Step 6: Final answer
    x = 745,393.87

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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.