Home / 804,645.70-1,207,746.15-489,717.70

Finding the Fourth Proportional to 804,645.70, 1,207,746.15 and 489,717.70

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Solution

The fourth proportional to 804,645.70, 1,207,746.15 and 489,717.70 is: 735,049.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    804,645.70 : 1,207,746.15 = 489,717.70 : x
  2. Step 2: Convert to fraction form
    804,645.70/1,207,746.15 = 489,717.70/x
  3. Step 3: Cross multiply
    804,645.70x = 1,207,746.15 × 489,717.70
  4. Step 4: Simplify right side
    804,645.70x = 591,454,666,761.86
  5. Step 5: Solve for x
    x = 591,454,666,761.86/804,645.70
  6. Step 6: Final answer
    x = 735,049.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.