Home / 841,820.40-1,262,721.96-486,608.40

Finding the Fourth Proportional to 841,820.40, 1,262,721.96 and 486,608.40

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Solution

The fourth proportional to 841,820.40, 1,262,721.96 and 486,608.40 is: 729,907.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    841,820.40 : 1,262,721.96 = 486,608.40 : x
  2. Step 2: Convert to fraction form
    841,820.40/1,262,721.96 = 486,608.40/x
  3. Step 3: Cross multiply
    841,820.40x = 1,262,721.96 × 486,608.40
  4. Step 4: Simplify right side
    841,820.40x = 614,451,112,600.46
  5. Step 5: Solve for x
    x = 614,451,112,600.46/841,820.40
  6. Step 6: Final answer
    x = 729,907.61

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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.