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Finding the Fourth Proportional to 356,747.60, 535,121.40 and 324,088.40

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Solution

The fourth proportional to 356,747.60, 535,121.40 and 324,088.40 is: 486,132.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,747.60 : 535,121.40 = 324,088.40 : x
  2. Step 2: Convert to fraction form
    356,747.60/535,121.40 = 324,088.40/x
  3. Step 3: Cross multiply
    356,747.60x = 535,121.40 × 324,088.40
  4. Step 4: Simplify right side
    356,747.60x = 173,426,638,331.76
  5. Step 5: Solve for x
    x = 173,426,638,331.76/356,747.60
  6. Step 6: Final answer
    x = 486,132.60

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.