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Finding the Fourth Proportional to 1,045,408, 1,442,750 and 580,305.65

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Solution

The fourth proportional to 1,045,408, 1,442,750 and 580,305.65 is: 800,870.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,045,408 : 1,442,750 = 580,305.65 : x
  2. Step 2: Convert to fraction form
    1,045,408/1,442,750 = 580,305.65/x
  3. Step 3: Cross multiply
    1,045,408x = 1,442,750 × 580,305.65
  4. Step 4: Simplify right side
    1,045,408x = 837,235,976,537.50
  5. Step 5: Solve for x
    x = 837,235,976,537.50/1,045,408
  6. Step 6: Final answer
    x = 800,870.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.