Home / 942,406.47-1,300,972.59-580,140.86

Finding the Fourth Proportional to 942,406.47, 1,300,972.59 and 580,140.86

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Solution

The fourth proportional to 942,406.47, 1,300,972.59 and 580,140.86 is: 800,872.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    942,406.47 : 1,300,972.59 = 580,140.86 : x
  2. Step 2: Convert to fraction form
    942,406.47/1,300,972.59 = 580,140.86/x
  3. Step 3: Cross multiply
    942,406.47x = 1,300,972.59 × 580,140.86
  4. Step 4: Simplify right side
    942,406.47x = 754,747,350,694.16
  5. Step 5: Solve for x
    x = 754,747,350,694.16/942,406.47
  6. Step 6: Final answer
    x = 800,872.42

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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.