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Finding the Fourth Proportional to 432,002.55, 605,425.65 and 432,002.55

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Solution

The fourth proportional to 432,002.55, 605,425.65 and 432,002.55 is: 605,425.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,002.55 : 605,425.65 = 432,002.55 : x
  2. Step 2: Convert to fraction form
    432,002.55/605,425.65 = 432,002.55/x
  3. Step 3: Cross multiply
    432,002.55x = 605,425.65 × 432,002.55
  4. Step 4: Simplify right side
    432,002.55x = 261,545,424,635.41
  5. Step 5: Solve for x
    x = 261,545,424,635.41/432,002.55
  6. Step 6: Final answer
    x = 605,425.65

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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.