Home / 898,765.20-1,240,289.33-490,867.23

Finding the Fourth Proportional to 898,765.20, 1,240,289.33 and 490,867.23

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Solution

The fourth proportional to 898,765.20, 1,240,289.33 and 490,867.23 is: 677,393.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    898,765.20 : 1,240,289.33 = 490,867.23 : x
  2. Step 2: Convert to fraction form
    898,765.20/1,240,289.33 = 490,867.23/x
  3. Step 3: Cross multiply
    898,765.20x = 1,240,289.33 × 490,867.23
  4. Step 4: Simplify right side
    898,765.20x = 608,817,387,815.66
  5. Step 5: Solve for x
    x = 608,817,387,815.66/898,765.20
  6. Step 6: Final answer
    x = 677,393.15

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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.