Home / 772,255.38-1,064,531.10-542,167.20

Finding the Fourth Proportional to 772,255.38, 1,064,531.10 and 542,167.20

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Solution

The fourth proportional to 772,255.38, 1,064,531.10 and 542,167.20 is: 747,361.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,255.38 : 1,064,531.10 = 542,167.20 : x
  2. Step 2: Convert to fraction form
    772,255.38/1,064,531.10 = 542,167.20/x
  3. Step 3: Cross multiply
    772,255.38x = 1,064,531.10 × 542,167.20
  4. Step 4: Simplify right side
    772,255.38x = 577,153,845,799.92
  5. Step 5: Solve for x
    x = 577,153,845,799.92/772,255.38
  6. Step 6: Final answer
    x = 747,361.38

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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.