Home / 898,378.89-1,239,743.88-490,461

Finding the Fourth Proportional to 898,378.89, 1,239,743.88 and 490,461

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Solution

The fourth proportional to 898,378.89, 1,239,743.88 and 490,461 is: 676,825.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,378.89 : 1,239,743.88 = 490,461 : x
  2. Step 2: Convert to fraction form
    898,378.89/1,239,743.88 = 490,461/x
  3. Step 3: Cross multiply
    898,378.89x = 1,239,743.88 × 490,461
  4. Step 4: Simplify right side
    898,378.89x = 608,046,023,128.68
  5. Step 5: Solve for x
    x = 608,046,023,128.68/898,378.89
  6. Step 6: Final answer
    x = 676,825.81

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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.