Home / 1,127,555.28-1,691,581.72-328,899.32

Finding the Fourth Proportional to 1,127,555.28, 1,691,581.72 and 328,899.32

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Solution

The fourth proportional to 1,127,555.28, 1,691,581.72 and 328,899.32 is: 493,421.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,127,555.28 : 1,691,581.72 = 328,899.32 : x
  2. Step 2: Convert to fraction form
    1,127,555.28/1,691,581.72 = 328,899.32/x
  3. Step 3: Cross multiply
    1,127,555.28x = 1,691,581.72 × 328,899.32
  4. Step 4: Simplify right side
    1,127,555.28x = 556,360,077,432.43
  5. Step 5: Solve for x
    x = 556,360,077,432.43/1,127,555.28
  6. Step 6: Final answer
    x = 493,421.55

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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.