Home / 724,810.20-1,087,215.30-612,835.80

Finding the Fourth Proportional to 724,810.20, 1,087,215.30 and 612,835.80

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Solution

The fourth proportional to 724,810.20, 1,087,215.30 and 612,835.80 is: 919,253.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    724,810.20 : 1,087,215.30 = 612,835.80 : x
  2. Step 2: Convert to fraction form
    724,810.20/1,087,215.30 = 612,835.80/x
  3. Step 3: Cross multiply
    724,810.20x = 1,087,215.30 × 612,835.80
  4. Step 4: Simplify right side
    724,810.20x = 666,284,458,147.74
  5. Step 5: Solve for x
    x = 666,284,458,147.74/724,810.20
  6. Step 6: Final answer
    x = 919,253.70

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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.