Home / 805,830.86-1,112,053.56-438,310.95

Finding the Fourth Proportional to 805,830.86, 1,112,053.56 and 438,310.95

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Solution

The fourth proportional to 805,830.86, 1,112,053.56 and 438,310.95 is: 604,872.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    805,830.86 : 1,112,053.56 = 438,310.95 : x
  2. Step 2: Convert to fraction form
    805,830.86/1,112,053.56 = 438,310.95/x
  3. Step 3: Cross multiply
    805,830.86x = 1,112,053.56 × 438,310.95
  4. Step 4: Simplify right side
    805,830.86x = 487,425,253,431.02
  5. Step 5: Solve for x
    x = 487,425,253,431.02/805,830.86
  6. Step 6: Final answer
    x = 604,872.90

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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.