Home / 1,348,403.20-2,019,980.40-748,290.40

Finding the Fourth Proportional to 1,348,403.20, 2,019,980.40 and 748,290.40

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Solution

The fourth proportional to 1,348,403.20, 2,019,980.40 and 748,290.40 is: 1,120,979.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,348,403.20 : 2,019,980.40 = 748,290.40 : x
  2. Step 2: Convert to fraction form
    1,348,403.20/2,019,980.40 = 748,290.40/x
  3. Step 3: Cross multiply
    1,348,403.20x = 2,019,980.40 × 748,290.40
  4. Step 4: Simplify right side
    1,348,403.20x = 1,511,531,941,508.16
  5. Step 5: Solve for x
    x = 1,511,531,941,508.16/1,348,403.20
  6. Step 6: Final answer
    x = 1,120,979.20

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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.