Home / 817,428.30-1,128,082.95-494,956.14

Finding the Fourth Proportional to 817,428.30, 1,128,082.95 and 494,956.14

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Solution

The fourth proportional to 817,428.30, 1,128,082.95 and 494,956.14 is: 683,058.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,428.30 : 1,128,082.95 = 494,956.14 : x
  2. Step 2: Convert to fraction form
    817,428.30/1,128,082.95 = 494,956.14/x
  3. Step 3: Cross multiply
    817,428.30x = 1,128,082.95 × 494,956.14
  4. Step 4: Simplify right side
    817,428.30x = 558,351,582,531.81
  5. Step 5: Solve for x
    x = 558,351,582,531.81/817,428.30
  6. Step 6: Final answer
    x = 683,058.79

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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.