Home / 1,077,928.08-1,487,165.13-690,956.89

Finding the Fourth Proportional to 1,077,928.08, 1,487,165.13 and 690,956.89

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Solution

The fourth proportional to 1,077,928.08, 1,487,165.13 and 690,956.89 is: 953,279.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,928.08 : 1,487,165.13 = 690,956.89 : x
  2. Step 2: Convert to fraction form
    1,077,928.08/1,487,165.13 = 690,956.89/x
  3. Step 3: Cross multiply
    1,077,928.08x = 1,487,165.13 × 690,956.89
  4. Step 4: Simplify right side
    1,077,928.08x = 1,027,566,993,141.25
  5. Step 5: Solve for x
    x = 1,027,566,993,141.25/1,077,928.08
  6. Step 6: Final answer
    x = 953,279.74

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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.