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Finding the Fourth Proportional to 916,680.80, 1,373,854.80 and 442,344.80

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Solution

The fourth proportional to 916,680.80, 1,373,854.80 and 442,344.80 is: 662,954.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    916,680.80 : 1,373,854.80 = 442,344.80 : x
  2. Step 2: Convert to fraction form
    916,680.80/1,373,854.80 = 442,344.80/x
  3. Step 3: Cross multiply
    916,680.80x = 1,373,854.80 × 442,344.80
  4. Step 4: Simplify right side
    916,680.80x = 607,717,526,735.04
  5. Step 5: Solve for x
    x = 607,717,526,735.04/916,680.80
  6. Step 6: Final answer
    x = 662,954.35

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1.5x scale

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.