Home / 1,323,280.80-1,979,672.40-1,147,737.60

Finding the Fourth Proportional to 1,323,280.80, 1,979,672.40 and 1,147,737.60

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Solution

The fourth proportional to 1,323,280.80, 1,979,672.40 and 1,147,737.60 is: 1,717,053.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,323,280.80 : 1,979,672.40 = 1,147,737.60 : x
  2. Step 2: Convert to fraction form
    1,323,280.80/1,979,672.40 = 1,147,737.60/x
  3. Step 3: Cross multiply
    1,323,280.80x = 1,979,672.40 × 1,147,737.60
  4. Step 4: Simplify right side
    1,323,280.80x = 2,272,144,449,162.24
  5. Step 5: Solve for x
    x = 2,272,144,449,162.24/1,323,280.80
  6. Step 6: Final answer
    x = 1,717,053.89

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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.