Home / 759,819.80-1,139,729.70-724,827.80

Finding the Fourth Proportional to 759,819.80, 1,139,729.70 and 724,827.80

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Solution

The fourth proportional to 759,819.80, 1,139,729.70 and 724,827.80 is: 1,087,241.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    759,819.80 : 1,139,729.70 = 724,827.80 : x
  2. Step 2: Convert to fraction form
    759,819.80/1,139,729.70 = 724,827.80/x
  3. Step 3: Cross multiply
    759,819.80x = 1,139,729.70 × 724,827.80
  4. Step 4: Simplify right side
    759,819.80x = 826,107,771,045.66
  5. Step 5: Solve for x
    x = 826,107,771,045.66/759,819.80
  6. Step 6: Final answer
    x = 1,087,241.70

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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.