Home / 872,262.74-1,308,569.88-311,282.66

Finding the Fourth Proportional to 872,262.74, 1,308,569.88 and 311,282.66

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Solution

The fourth proportional to 872,262.74, 1,308,569.88 and 311,282.66 is: 466,986.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,262.74 : 1,308,569.88 = 311,282.66 : x
  2. Step 2: Convert to fraction form
    872,262.74/1,308,569.88 = 311,282.66/x
  3. Step 3: Cross multiply
    872,262.74x = 1,308,569.88 × 311,282.66
  4. Step 4: Simplify right side
    872,262.74x = 407,335,113,042.28
  5. Step 5: Solve for x
    x = 407,335,113,042.28/872,262.74
  6. Step 6: Final answer
    x = 466,986.72

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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.