Home / 845,975.20-1,268,655.60-425,111.20

Finding the Fourth Proportional to 845,975.20, 1,268,655.60 and 425,111.20

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Solution

The fourth proportional to 845,975.20, 1,268,655.60 and 425,111.20 is: 637,512.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,975.20 : 1,268,655.60 = 425,111.20 : x
  2. Step 2: Convert to fraction form
    845,975.20/1,268,655.60 = 425,111.20/x
  3. Step 3: Cross multiply
    845,975.20x = 1,268,655.60 × 425,111.20
  4. Step 4: Simplify right side
    845,975.20x = 539,319,704,502.72
  5. Step 5: Solve for x
    x = 539,319,704,502.72/845,975.20
  6. Step 6: Final answer
    x = 637,512.43

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.