Home / 771,131.55-1,064,161.38-431,599.80

Finding the Fourth Proportional to 771,131.55, 1,064,161.38 and 431,599.80

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Solution

The fourth proportional to 771,131.55, 1,064,161.38 and 431,599.80 is: 595,607.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,131.55 : 1,064,161.38 = 431,599.80 : x
  2. Step 2: Convert to fraction form
    771,131.55/1,064,161.38 = 431,599.80/x
  3. Step 3: Cross multiply
    771,131.55x = 1,064,161.38 × 431,599.80
  4. Step 4: Simplify right side
    771,131.55x = 459,291,838,775.72
  5. Step 5: Solve for x
    x = 459,291,838,775.72/771,131.55
  6. Step 6: Final answer
    x = 595,607.64

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Double scale
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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.