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Finding the Fourth Proportional to 674,957.86, 1,012,600.68 and 201,639.76

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Solution

The fourth proportional to 674,957.86, 1,012,600.68 and 201,639.76 is: 302,508.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,957.86 : 1,012,600.68 = 201,639.76 : x
  2. Step 2: Convert to fraction form
    674,957.86/1,012,600.68 = 201,639.76/x
  3. Step 3: Cross multiply
    674,957.86x = 1,012,600.68 × 201,639.76
  4. Step 4: Simplify right side
    674,957.86x = 204,180,558,091.04
  5. Step 5: Solve for x
    x = 204,180,558,091.04/674,957.86
  6. Step 6: Final answer
    x = 302,508.60

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Why These Related Problems?

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