Home / 743,988.17-1,026,783.94-421,663.66

Finding the Fourth Proportional to 743,988.17, 1,026,783.94 and 421,663.66

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Solution

The fourth proportional to 743,988.17, 1,026,783.94 and 421,663.66 is: 581,941.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,988.17 : 1,026,783.94 = 421,663.66 : x
  2. Step 2: Convert to fraction form
    743,988.17/1,026,783.94 = 421,663.66/x
  3. Step 3: Cross multiply
    743,988.17x = 1,026,783.94 × 421,663.66
  4. Step 4: Simplify right side
    743,988.17x = 432,957,472,061.30
  5. Step 5: Solve for x
    x = 432,957,472,061.30/743,988.17
  6. Step 6: Final answer
    x = 581,941.34

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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.