Home / 718,306.80-1,077,460.20-419,125.20

Finding the Fourth Proportional to 718,306.80, 1,077,460.20 and 419,125.20

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Solution

The fourth proportional to 718,306.80, 1,077,460.20 and 419,125.20 is: 628,687.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    718,306.80 : 1,077,460.20 = 419,125.20 : x
  2. Step 2: Convert to fraction form
    718,306.80/1,077,460.20 = 419,125.20/x
  3. Step 3: Cross multiply
    718,306.80x = 1,077,460.20 × 419,125.20
  4. Step 4: Simplify right side
    718,306.80x = 451,590,721,817.04
  5. Step 5: Solve for x
    x = 451,590,721,817.04/718,306.80
  6. Step 6: Final answer
    x = 628,687.80

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1.5x scale

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.