Home / 845,534.40-1,268,301.60-425,630.40

Finding the Fourth Proportional to 845,534.40, 1,268,301.60 and 425,630.40

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Solution

The fourth proportional to 845,534.40, 1,268,301.60 and 425,630.40 is: 638,445.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,534.40 : 1,268,301.60 = 425,630.40 : x
  2. Step 2: Convert to fraction form
    845,534.40/1,268,301.60 = 425,630.40/x
  3. Step 3: Cross multiply
    845,534.40x = 1,268,301.60 × 425,630.40
  4. Step 4: Simplify right side
    845,534.40x = 539,827,717,328.64
  5. Step 5: Solve for x
    x = 539,827,717,328.64/845,534.40
  6. Step 6: Final answer
    x = 638,445.60

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Double scale
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Similar ratio
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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.