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Finding the Fourth Proportional to 608,072.80, 912,109.20 and 496,098.40

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Solution

The fourth proportional to 608,072.80, 912,109.20 and 496,098.40 is: 744,147.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,072.80 : 912,109.20 = 496,098.40 : x
  2. Step 2: Convert to fraction form
    608,072.80/912,109.20 = 496,098.40/x
  3. Step 3: Cross multiply
    608,072.80x = 912,109.20 × 496,098.40
  4. Step 4: Simplify right side
    608,072.80x = 452,495,914,745.28
  5. Step 5: Solve for x
    x = 452,495,914,745.28/608,072.80
  6. Step 6: Final answer
    x = 744,147.60

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Similar ratio
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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.