Home / 674,343.28-1,011,660.72-358,754.32

Finding the Fourth Proportional to 674,343.28, 1,011,660.72 and 358,754.32

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Solution

The fourth proportional to 674,343.28, 1,011,660.72 and 358,754.32 is: 538,209.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,343.28 : 1,011,660.72 = 358,754.32 : x
  2. Step 2: Convert to fraction form
    674,343.28/1,011,660.72 = 358,754.32/x
  3. Step 3: Cross multiply
    674,343.28x = 1,011,660.72 × 358,754.32
  4. Step 4: Simplify right side
    674,343.28x = 362,937,653,674.31
  5. Step 5: Solve for x
    x = 362,937,653,674.31/674,343.28
  6. Step 6: Final answer
    x = 538,209.05

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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.