Home / 780,946.80-1,170,545.40-331,591.20

Finding the Fourth Proportional to 780,946.80, 1,170,545.40 and 331,591.20

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Solution

The fourth proportional to 780,946.80, 1,170,545.40 and 331,591.20 is: 497,015.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,946.80 : 1,170,545.40 = 331,591.20 : x
  2. Step 2: Convert to fraction form
    780,946.80/1,170,545.40 = 331,591.20/x
  3. Step 3: Cross multiply
    780,946.80x = 1,170,545.40 × 331,591.20
  4. Step 4: Simplify right side
    780,946.80x = 388,142,553,840.48
  5. Step 5: Solve for x
    x = 388,142,553,840.48/780,946.80
  6. Step 6: Final answer
    x = 497,015.36

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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.