Home / 771,120.28-1,064,145.86-431,588.52

Finding the Fourth Proportional to 771,120.28, 1,064,145.86 and 431,588.52

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Solution

The fourth proportional to 771,120.28, 1,064,145.86 and 431,588.52 is: 595,592.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,120.28 : 1,064,145.86 = 431,588.52 : x
  2. Step 2: Convert to fraction form
    771,120.28/1,064,145.86 = 431,588.52/x
  3. Step 3: Cross multiply
    771,120.28x = 1,064,145.86 × 431,588.52
  4. Step 4: Simplify right side
    771,120.28x = 459,273,136,781.53
  5. Step 5: Solve for x
    x = 459,273,136,781.53/771,120.28
  6. Step 6: Final answer
    x = 595,592.09

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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.