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Finding the Fourth Proportional to 632,157.13, 872,404.32 and 356,607.55

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Solution

The fourth proportional to 632,157.13, 872,404.32 and 356,607.55 is: 492,133.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    632,157.13 : 872,404.32 = 356,607.55 : x
  2. Step 2: Convert to fraction form
    632,157.13/872,404.32 = 356,607.55/x
  3. Step 3: Cross multiply
    632,157.13x = 872,404.32 × 356,607.55
  4. Step 4: Simplify right side
    632,157.13x = 311,105,967,164.62
  5. Step 5: Solve for x
    x = 311,105,967,164.62/632,157.13
  6. Step 6: Final answer
    x = 492,133.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.