Home / 898,766.45-1,240,291.05-490,868.48

Finding the Fourth Proportional to 898,766.45, 1,240,291.05 and 490,868.48

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Solution

The fourth proportional to 898,766.45, 1,240,291.05 and 490,868.48 is: 677,394.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,766.45 : 1,240,291.05 = 490,868.48 : x
  2. Step 2: Convert to fraction form
    898,766.45/1,240,291.05 = 490,868.48/x
  3. Step 3: Cross multiply
    898,766.45x = 1,240,291.05 × 490,868.48
  4. Step 4: Simplify right side
    898,766.45x = 608,819,776,269.65
  5. Step 5: Solve for x
    x = 608,819,776,269.65/898,766.45
  6. Step 6: Final answer
    x = 677,394.86

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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.