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Finding the Fourth Proportional to 482,923.80, 724,904.10 and 272,971.80

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Solution

The fourth proportional to 482,923.80, 724,904.10 and 272,971.80 is: 409,750.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,923.80 : 724,904.10 = 272,971.80 : x
  2. Step 2: Convert to fraction form
    482,923.80/724,904.10 = 272,971.80/x
  3. Step 3: Cross multiply
    482,923.80x = 724,904.10 × 272,971.80
  4. Step 4: Simplify right side
    482,923.80x = 197,878,377,004.38
  5. Step 5: Solve for x
    x = 197,878,377,004.38/482,923.80
  6. Step 6: Final answer
    x = 409,750.72

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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.