Home / 743,171.46-1,026,001.53-489,260.76

Finding the Fourth Proportional to 743,171.46, 1,026,001.53 and 489,260.76

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Solution

The fourth proportional to 743,171.46, 1,026,001.53 and 489,260.76 is: 675,459.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    743,171.46 : 1,026,001.53 = 489,260.76 : x
  2. Step 2: Convert to fraction form
    743,171.46/1,026,001.53 = 489,260.76/x
  3. Step 3: Cross multiply
    743,171.46x = 1,026,001.53 × 489,260.76
  4. Step 4: Simplify right side
    743,171.46x = 501,982,288,328.96
  5. Step 5: Solve for x
    x = 501,982,288,328.96/743,171.46
  6. Step 6: Final answer
    x = 675,459.59

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Double scale
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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.