Home / 1,299,115.20-1,947,214.80-625,519.20

Finding the Fourth Proportional to 1,299,115.20, 1,947,214.80 and 625,519.20

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Solution

The fourth proportional to 1,299,115.20, 1,947,214.80 and 625,519.20 is: 937,576.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,299,115.20 : 1,947,214.80 = 625,519.20 : x
  2. Step 2: Convert to fraction form
    1,299,115.20/1,947,214.80 = 625,519.20/x
  3. Step 3: Cross multiply
    1,299,115.20x = 1,947,214.80 × 625,519.20
  4. Step 4: Simplify right side
    1,299,115.20x = 1,218,020,243,924.16
  5. Step 5: Solve for x
    x = 1,218,020,243,924.16/1,299,115.20
  6. Step 6: Final answer
    x = 937,576.78

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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.