Home / 898,405.16-1,239,766.56-490,499.48

Finding the Fourth Proportional to 898,405.16, 1,239,766.56 and 490,499.48

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Solution

The fourth proportional to 898,405.16, 1,239,766.56 and 490,499.48 is: 676,871.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,405.16 : 1,239,766.56 = 490,499.48 : x
  2. Step 2: Convert to fraction form
    898,405.16/1,239,766.56 = 490,499.48/x
  3. Step 3: Cross multiply
    898,405.16x = 1,239,766.56 × 490,499.48
  4. Step 4: Simplify right side
    898,405.16x = 608,104,856,100.81
  5. Step 5: Solve for x
    x = 608,104,856,100.81/898,405.16
  6. Step 6: Final answer
    x = 676,871.51

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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.