Home / 1,271,239.60-1,754,560.80-720,053.92

Finding the Fourth Proportional to 1,271,239.60, 1,754,560.80 and 720,053.92

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Solution

The fourth proportional to 1,271,239.60, 1,754,560.80 and 720,053.92 is: 993,816.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,271,239.60 : 1,754,560.80 = 720,053.92 : x
  2. Step 2: Convert to fraction form
    1,271,239.60/1,754,560.80 = 720,053.92/x
  3. Step 3: Cross multiply
    1,271,239.60x = 1,754,560.80 × 720,053.92
  4. Step 4: Simplify right side
    1,271,239.60x = 1,263,378,381,918.34
  5. Step 5: Solve for x
    x = 1,263,378,381,918.34/1,271,239.60
  6. Step 6: Final answer
    x = 993,816.10

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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.