Home / 771,158.12-1,064,187.78-431,626.28

Finding the Fourth Proportional to 771,158.12, 1,064,187.78 and 431,626.28

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Solution

The fourth proportional to 771,158.12, 1,064,187.78 and 431,626.28 is: 595,638.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,158.12 : 1,064,187.78 = 431,626.28 : x
  2. Step 2: Convert to fraction form
    771,158.12/1,064,187.78 = 431,626.28/x
  3. Step 3: Cross multiply
    771,158.12x = 1,064,187.78 × 431,626.28
  4. Step 4: Simplify right side
    771,158.12x = 459,331,412,702.86
  5. Step 5: Solve for x
    x = 459,331,412,702.86/771,158.12
  6. Step 6: Final answer
    x = 595,638.43

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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.