Home / 642,044.04-886,036.80-351,671.49

Finding the Fourth Proportional to 642,044.04, 886,036.80 and 351,671.49

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Solution

The fourth proportional to 642,044.04, 886,036.80 and 351,671.49 is: 485,315.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,044.04 : 886,036.80 = 351,671.49 : x
  2. Step 2: Convert to fraction form
    642,044.04/886,036.80 = 351,671.49/x
  3. Step 3: Cross multiply
    642,044.04x = 886,036.80 × 351,671.49
  4. Step 4: Simplify right side
    642,044.04x = 311,593,881,650.83
  5. Step 5: Solve for x
    x = 311,593,881,650.83/642,044.04
  6. Step 6: Final answer
    x = 485,315.43

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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.