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Finding the Fourth Proportional to 664,358.55, 928,002.45 and 664,358.55

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Solution

The fourth proportional to 664,358.55, 928,002.45 and 664,358.55 is: 928,002.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    664,358.55 : 928,002.45 = 664,358.55 : x
  2. Step 2: Convert to fraction form
    664,358.55/928,002.45 = 664,358.55/x
  3. Step 3: Cross multiply
    664,358.55x = 928,002.45 × 664,358.55
  4. Step 4: Simplify right side
    664,358.55x = 616,526,362,078.45
  5. Step 5: Solve for x
    x = 616,526,362,078.45/664,358.55
  6. Step 6: Final answer
    x = 928,002.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.