Home / 771,115.28-1,064,138.96-431,583.56

Finding the Fourth Proportional to 771,115.28, 1,064,138.96 and 431,583.56

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Solution

The fourth proportional to 771,115.28, 1,064,138.96 and 431,583.56 is: 595,585.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,115.28 : 1,064,138.96 = 431,583.56 : x
  2. Step 2: Convert to fraction form
    771,115.28/1,064,138.96 = 431,583.56/x
  3. Step 3: Cross multiply
    771,115.28x = 1,064,138.96 × 431,583.56
  4. Step 4: Simplify right side
    771,115.28x = 459,264,880,691.50
  5. Step 5: Solve for x
    x = 459,264,880,691.50/771,115.28
  6. Step 6: Final answer
    x = 595,585.24

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1.5x scale

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.