Home / 743,988.41-1,026,784.28-421,663.91

Finding the Fourth Proportional to 743,988.41, 1,026,784.28 and 421,663.91

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Solution

The fourth proportional to 743,988.41, 1,026,784.28 and 421,663.91 is: 581,941.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,988.41 : 1,026,784.28 = 421,663.91 : x
  2. Step 2: Convert to fraction form
    743,988.41/1,026,784.28 = 421,663.91/x
  3. Step 3: Cross multiply
    743,988.41x = 1,026,784.28 × 421,663.91
  4. Step 4: Simplify right side
    743,988.41x = 432,957,872,123.02
  5. Step 5: Solve for x
    x = 432,957,872,123.02/743,988.41
  6. Step 6: Final answer
    x = 581,941.69

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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.