Home / 743,829.78-1,026,463.53-421,569.66

Finding the Fourth Proportional to 743,829.78, 1,026,463.53 and 421,569.66

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Solution

The fourth proportional to 743,829.78, 1,026,463.53 and 421,569.66 is: 581,753.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,829.78 : 1,026,463.53 = 421,569.66 : x
  2. Step 2: Convert to fraction form
    743,829.78/1,026,463.53 = 421,569.66/x
  3. Step 3: Cross multiply
    743,829.78x = 1,026,463.53 × 421,569.66
  4. Step 4: Simplify right side
    743,829.78x = 432,725,881,344.50
  5. Step 5: Solve for x
    x = 432,725,881,344.50/743,829.78
  6. Step 6: Final answer
    x = 581,753.91

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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.