Home / 1,299,312.12-1,792,769.04-726,332.70

Finding the Fourth Proportional to 1,299,312.12, 1,792,769.04 and 726,332.70

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Solution

The fourth proportional to 1,299,312.12, 1,792,769.04 and 726,332.70 is: 1,002,181.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,312.12 : 1,792,769.04 = 726,332.70 : x
  2. Step 2: Convert to fraction form
    1,299,312.12/1,792,769.04 = 726,332.70/x
  3. Step 3: Cross multiply
    1,299,312.12x = 1,792,769.04 × 726,332.70
  4. Step 4: Simplify right side
    1,299,312.12x = 1,302,146,777,299.61
  5. Step 5: Solve for x
    x = 1,302,146,777,299.61/1,299,312.12
  6. Step 6: Final answer
    x = 1,002,181.66

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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.