Home / 1,230,172.80-1,845,259.20-981,340.80

Finding the Fourth Proportional to 1,230,172.80, 1,845,259.20 and 981,340.80

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Solution

The fourth proportional to 1,230,172.80, 1,845,259.20 and 981,340.80 is: 1,472,011.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,230,172.80 : 1,845,259.20 = 981,340.80 : x
  2. Step 2: Convert to fraction form
    1,230,172.80/1,845,259.20 = 981,340.80/x
  3. Step 3: Cross multiply
    1,230,172.80x = 1,845,259.20 × 981,340.80
  4. Step 4: Simplify right side
    1,230,172.80x = 1,810,828,139,535.36
  5. Step 5: Solve for x
    x = 1,810,828,139,535.36/1,230,172.80
  6. Step 6: Final answer
    x = 1,472,011.20

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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.