Home / 1,081,369.92-1,492,248.24-645,861.12

Finding the Fourth Proportional to 1,081,369.92, 1,492,248.24 and 645,861.12

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Solution

The fourth proportional to 1,081,369.92, 1,492,248.24 and 645,861.12 is: 891,263.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,081,369.92 : 1,492,248.24 = 645,861.12 : x
  2. Step 2: Convert to fraction form
    1,081,369.92/1,492,248.24 = 645,861.12/x
  3. Step 3: Cross multiply
    1,081,369.92x = 1,492,248.24 × 645,861.12
  4. Step 4: Simplify right side
    1,081,369.92x = 963,785,119,604.43
  5. Step 5: Solve for x
    x = 963,785,119,604.43/1,081,369.92
  6. Step 6: Final answer
    x = 891,263.11

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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.