Home / 860,624.38-1,187,703.72-478,642.96

Finding the Fourth Proportional to 860,624.38, 1,187,703.72 and 478,642.96

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Solution

The fourth proportional to 860,624.38, 1,187,703.72 and 478,642.96 is: 660,550.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    860,624.38 : 1,187,703.72 = 478,642.96 : x
  2. Step 2: Convert to fraction form
    860,624.38/1,187,703.72 = 478,642.96/x
  3. Step 3: Cross multiply
    860,624.38x = 1,187,703.72 × 478,642.96
  4. Step 4: Simplify right side
    860,624.38x = 568,486,024,143.81
  5. Step 5: Solve for x
    x = 568,486,024,143.81/860,624.38
  6. Step 6: Final answer
    x = 660,550.69

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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.