Home / 898,374.77-1,239,738.24-490,456.90

Finding the Fourth Proportional to 898,374.77, 1,239,738.24 and 490,456.90

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Solution

The fourth proportional to 898,374.77, 1,239,738.24 and 490,456.90 is: 676,820.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,374.77 : 1,239,738.24 = 490,456.90 : x
  2. Step 2: Convert to fraction form
    898,374.77/1,239,738.24 = 490,456.90/x
  3. Step 3: Cross multiply
    898,374.77x = 1,239,738.24 × 490,456.90
  4. Step 4: Simplify right side
    898,374.77x = 608,038,177,390.74
  5. Step 5: Solve for x
    x = 608,038,177,390.74/898,374.77
  6. Step 6: Final answer
    x = 676,820.18

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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.