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Finding the Fourth Proportional to 406,002.80, 608,946.60 and 125,548.40

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Solution

The fourth proportional to 406,002.80, 608,946.60 and 125,548.40 is: 188,304.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,002.80 : 608,946.60 = 125,548.40 : x
  2. Step 2: Convert to fraction form
    406,002.80/608,946.60 = 125,548.40/x
  3. Step 3: Cross multiply
    406,002.80x = 608,946.60 × 125,548.40
  4. Step 4: Simplify right side
    406,002.80x = 76,452,271,315.44
  5. Step 5: Solve for x
    x = 76,452,271,315.44/406,002.80
  6. Step 6: Final answer
    x = 188,304.79

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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.