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Finding the Fourth Proportional to 417,851.87, 575,344.45 and 326,340.80

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Solution

The fourth proportional to 417,851.87, 575,344.45 and 326,340.80 is: 449,341.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,851.87 : 575,344.45 = 326,340.80 : x
  2. Step 2: Convert to fraction form
    417,851.87/575,344.45 = 326,340.80/x
  3. Step 3: Cross multiply
    417,851.87x = 575,344.45 × 326,340.80
  4. Step 4: Simplify right side
    417,851.87x = 187,758,368,827.79
  5. Step 5: Solve for x
    x = 187,758,368,827.79/417,851.87
  6. Step 6: Final answer
    x = 449,341.94

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1.5x scale

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.