Home / 1,249,531.20-1,874,296.80-777,139.20

Finding the Fourth Proportional to 1,249,531.20, 1,874,296.80 and 777,139.20

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Solution

The fourth proportional to 1,249,531.20, 1,874,296.80 and 777,139.20 is: 1,165,708.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,249,531.20 : 1,874,296.80 = 777,139.20 : x
  2. Step 2: Convert to fraction form
    1,249,531.20/1,874,296.80 = 777,139.20/x
  3. Step 3: Cross multiply
    1,249,531.20x = 1,874,296.80 × 777,139.20
  4. Step 4: Simplify right side
    1,249,531.20x = 1,456,589,515,714.56
  5. Step 5: Solve for x
    x = 1,456,589,515,714.56/1,249,531.20
  6. Step 6: Final answer
    x = 1,165,708.80

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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.