Home / 424,621.47-636,966.78-121,038.85

Finding the Fourth Proportional to 424,621.47, 636,966.78 and 121,038.85

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Solution

The fourth proportional to 424,621.47, 636,966.78 and 121,038.85 is: 181,568.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,621.47 : 636,966.78 = 121,038.85 : x
  2. Step 2: Convert to fraction form
    424,621.47/636,966.78 = 121,038.85/x
  3. Step 3: Cross multiply
    424,621.47x = 636,966.78 × 121,038.85
  4. Step 4: Simplify right side
    424,621.47x = 77,097,726,539.40
  5. Step 5: Solve for x
    x = 77,097,726,539.40/424,621.47
  6. Step 6: Final answer
    x = 181,568.13

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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.