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Finding the Fourth Proportional to 451,397.70, 677,269.35 and 444,312.90

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Solution

The fourth proportional to 451,397.70, 677,269.35 and 444,312.90 is: 666,639.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    451,397.70 : 677,269.35 = 444,312.90 : x
  2. Step 2: Convert to fraction form
    451,397.70/677,269.35 = 444,312.90/x
  3. Step 3: Cross multiply
    451,397.70x = 677,269.35 × 444,312.90
  4. Step 4: Simplify right side
    451,397.70x = 300,919,508,979.62
  5. Step 5: Solve for x
    x = 300,919,508,979.62/451,397.70
  6. Step 6: Final answer
    x = 666,639.44

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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.