Home / 772,243.75-1,064,515.05-542,155.55

Finding the Fourth Proportional to 772,243.75, 1,064,515.05 and 542,155.55

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Solution

The fourth proportional to 772,243.75, 1,064,515.05 and 542,155.55 is: 747,345.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    772,243.75 : 1,064,515.05 = 542,155.55 : x
  2. Step 2: Convert to fraction form
    772,243.75/1,064,515.05 = 542,155.55/x
  3. Step 3: Cross multiply
    772,243.75x = 1,064,515.05 × 542,155.55
  4. Step 4: Simplify right side
    772,243.75x = 577,132,745,077.32
  5. Step 5: Solve for x
    x = 577,132,745,077.32/772,243.75
  6. Step 6: Final answer
    x = 747,345.31

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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.