Home / 1,478,531.80-2,040,342.78-875,114.20

Finding the Fourth Proportional to 1,478,531.80, 2,040,342.78 and 875,114.20

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Solution

The fourth proportional to 1,478,531.80, 2,040,342.78 and 875,114.20 is: 1,207,639.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,478,531.80 : 2,040,342.78 = 875,114.20 : x
  2. Step 2: Convert to fraction form
    1,478,531.80/2,040,342.78 = 875,114.20/x
  3. Step 3: Cross multiply
    1,478,531.80x = 2,040,342.78 × 875,114.20
  4. Step 4: Simplify right side
    1,478,531.80x = 1,785,532,939,645.48
  5. Step 5: Solve for x
    x = 1,785,532,939,645.48/1,478,531.80
  6. Step 6: Final answer
    x = 1,207,639.19

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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.