Home / 1,585,692.66-2,378,834.10-721,189.79

Finding the Fourth Proportional to 1,585,692.66, 2,378,834.10 and 721,189.79

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Solution

The fourth proportional to 1,585,692.66, 2,378,834.10 and 721,189.79 is: 1,081,918.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,585,692.66 : 2,378,834.10 = 721,189.79 : x
  2. Step 2: Convert to fraction form
    1,585,692.66/2,378,834.10 = 721,189.79/x
  3. Step 3: Cross multiply
    1,585,692.66x = 2,378,834.10 × 721,189.79
  4. Step 4: Simplify right side
    1,585,692.66x = 1,715,590,853,129.67
  5. Step 5: Solve for x
    x = 1,715,590,853,129.67/1,585,692.66
  6. Step 6: Final answer
    x = 1,081,918.90

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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.