Home / 868,648.20-1,302,972.30-419,713.80

Finding the Fourth Proportional to 868,648.20, 1,302,972.30 and 419,713.80

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Solution

The fourth proportional to 868,648.20, 1,302,972.30 and 419,713.80 is: 629,570.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    868,648.20 : 1,302,972.30 = 419,713.80 : x
  2. Step 2: Convert to fraction form
    868,648.20/1,302,972.30 = 419,713.80/x
  3. Step 3: Cross multiply
    868,648.20x = 1,302,972.30 × 419,713.80
  4. Step 4: Simplify right side
    868,648.20x = 546,875,455,327.74
  5. Step 5: Solve for x
    x = 546,875,455,327.74/868,648.20
  6. Step 6: Final answer
    x = 629,570.70

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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.