Home / 780,141.68-1,170,253.04-247,704.40

Finding the Fourth Proportional to 780,141.68, 1,170,253.04 and 247,704.40

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Solution

The fourth proportional to 780,141.68, 1,170,253.04 and 247,704.40 is: 371,569.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    780,141.68 : 1,170,253.04 = 247,704.40 : x
  2. Step 2: Convert to fraction form
    780,141.68/1,170,253.04 = 247,704.40/x
  3. Step 3: Cross multiply
    780,141.68x = 1,170,253.04 × 247,704.40
  4. Step 4: Simplify right side
    780,141.68x = 289,876,827,121.38
  5. Step 5: Solve for x
    x = 289,876,827,121.38/780,141.68
  6. Step 6: Final answer
    x = 371,569.47

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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.