Home / 438,106.80-658,542.60-404,929.20

Finding the Fourth Proportional to 438,106.80, 658,542.60 and 404,929.20

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Solution

The fourth proportional to 438,106.80, 658,542.60 and 404,929.20 is: 608,671.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,106.80 : 658,542.60 = 404,929.20 : x
  2. Step 2: Convert to fraction form
    438,106.80/658,542.60 = 404,929.20/x
  3. Step 3: Cross multiply
    438,106.80x = 658,542.60 × 404,929.20
  4. Step 4: Simplify right side
    438,106.80x = 266,663,128,183.92
  5. Step 5: Solve for x
    x = 266,663,128,183.92/438,106.80
  6. Step 6: Final answer
    x = 608,671.51

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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.