Home / 1,259,490.08-1,888,116.30-490,809.86

Finding the Fourth Proportional to 1,259,490.08, 1,888,116.30 and 490,809.86

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Solution

The fourth proportional to 1,259,490.08, 1,888,116.30 and 490,809.86 is: 735,778.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,259,490.08 : 1,888,116.30 = 490,809.86 : x
  2. Step 2: Convert to fraction form
    1,259,490.08/1,888,116.30 = 490,809.86/x
  3. Step 3: Cross multiply
    1,259,490.08x = 1,888,116.30 × 490,809.86
  4. Step 4: Simplify right side
    1,259,490.08x = 926,706,087,426.14
  5. Step 5: Solve for x
    x = 926,706,087,426.14/1,259,490.08
  6. Step 6: Final answer
    x = 735,778.79

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.