Home / 743,555.73-1,026,103.34-421,265.14

Finding the Fourth Proportional to 743,555.73, 1,026,103.34 and 421,265.14

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Solution

The fourth proportional to 743,555.73, 1,026,103.34 and 421,265.14 is: 581,343.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,555.73 : 1,026,103.34 = 421,265.14 : x
  2. Step 2: Convert to fraction form
    743,555.73/1,026,103.34 = 421,265.14/x
  3. Step 3: Cross multiply
    743,555.73x = 1,026,103.34 × 421,265.14
  4. Step 4: Simplify right side
    743,555.73x = 432,261,567,179.57
  5. Step 5: Solve for x
    x = 432,261,567,179.57/743,555.73
  6. Step 6: Final answer
    x = 581,343.87

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Double scale
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Similar ratio
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1.5x scale

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.