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Finding the Fourth Proportional to 817,313.22, 1,127,870.73 and 454,737.78

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Solution

The fourth proportional to 817,313.22, 1,127,870.73 and 454,737.78 is: 627,526.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,313.22 : 1,127,870.73 = 454,737.78 : x
  2. Step 2: Convert to fraction form
    817,313.22/1,127,870.73 = 454,737.78/x
  3. Step 3: Cross multiply
    817,313.22x = 1,127,870.73 × 454,737.78
  4. Step 4: Simplify right side
    817,313.22x = 512,885,431,887.18
  5. Step 5: Solve for x
    x = 512,885,431,887.18/817,313.22
  6. Step 6: Final answer
    x = 627,526.17

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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.