Home / 743,932.88-1,026,605.76-421,672.64

Finding the Fourth Proportional to 743,932.88, 1,026,605.76 and 421,672.64

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Solution

The fourth proportional to 743,932.88, 1,026,605.76 and 421,672.64 is: 581,895.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,932.88 : 1,026,605.76 = 421,672.64 : x
  2. Step 2: Convert to fraction form
    743,932.88/1,026,605.76 = 421,672.64/x
  3. Step 3: Cross multiply
    743,932.88x = 1,026,605.76 × 421,672.64
  4. Step 4: Simplify right side
    743,932.88x = 432,891,561,058.41
  5. Step 5: Solve for x
    x = 432,891,561,058.41/743,932.88
  6. Step 6: Final answer
    x = 581,895.99

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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.