Home / 845,404.80-1,268,107.20-740,428.80

Finding the Fourth Proportional to 845,404.80, 1,268,107.20 and 740,428.80

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Solution

The fourth proportional to 845,404.80, 1,268,107.20 and 740,428.80 is: 1,110,643.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    845,404.80 : 1,268,107.20 = 740,428.80 : x
  2. Step 2: Convert to fraction form
    845,404.80/1,268,107.20 = 740,428.80/x
  3. Step 3: Cross multiply
    845,404.80x = 1,268,107.20 × 740,428.80
  4. Step 4: Simplify right side
    845,404.80x = 938,943,092,367.36
  5. Step 5: Solve for x
    x = 938,943,092,367.36/845,404.80
  6. Step 6: Final answer
    x = 1,110,643.20

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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.