Home / 847,642.45-1,169,768.24-465,678.85

Finding the Fourth Proportional to 847,642.45, 1,169,768.24 and 465,678.85

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Solution

The fourth proportional to 847,642.45, 1,169,768.24 and 465,678.85 is: 642,648.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    847,642.45 : 1,169,768.24 = 465,678.85 : x
  2. Step 2: Convert to fraction form
    847,642.45/1,169,768.24 = 465,678.85/x
  3. Step 3: Cross multiply
    847,642.45x = 1,169,768.24 × 465,678.85
  4. Step 4: Simplify right side
    847,642.45x = 544,736,328,769.72
  5. Step 5: Solve for x
    x = 544,736,328,769.72/847,642.45
  6. Step 6: Final answer
    x = 642,648.71

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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.