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Finding the Fourth Proportional to 449,141.60, 670,275.05 and 401,218.51

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Solution

The fourth proportional to 449,141.60, 670,275.05 and 401,218.51 is: 598,757.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,141.60 : 670,275.05 = 401,218.51 : x
  2. Step 2: Convert to fraction form
    449,141.60/670,275.05 = 401,218.51/x
  3. Step 3: Cross multiply
    449,141.60x = 670,275.05 × 401,218.51
  4. Step 4: Simplify right side
    449,141.60x = 268,926,756,851.18
  5. Step 5: Solve for x
    x = 268,926,756,851.18/449,141.60
  6. Step 6: Final answer
    x = 598,757.18

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.