Home / 674,331.28-1,011,642.72-358,742.32

Finding the Fourth Proportional to 674,331.28, 1,011,642.72 and 358,742.32

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Solution

The fourth proportional to 674,331.28, 1,011,642.72 and 358,742.32 is: 538,191.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,331.28 : 1,011,642.72 = 358,742.32 : x
  2. Step 2: Convert to fraction form
    674,331.28/1,011,642.72 = 358,742.32/x
  3. Step 3: Cross multiply
    674,331.28x = 1,011,642.72 × 358,742.32
  4. Step 4: Simplify right side
    674,331.28x = 362,919,056,383.91
  5. Step 5: Solve for x
    x = 362,919,056,383.91/674,331.28
  6. Step 6: Final answer
    x = 538,191.05

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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.