Home / 874,524.20-1,312,016.70-313,500.20

Finding the Fourth Proportional to 874,524.20, 1,312,016.70 and 313,500.20

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Solution

The fourth proportional to 874,524.20, 1,312,016.70 and 313,500.20 is: 470,332.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    874,524.20 : 1,312,016.70 = 313,500.20 : x
  2. Step 2: Convert to fraction form
    874,524.20/1,312,016.70 = 313,500.20/x
  3. Step 3: Cross multiply
    874,524.20x = 1,312,016.70 × 313,500.20
  4. Step 4: Simplify right side
    874,524.20x = 411,317,497,853.34
  5. Step 5: Solve for x
    x = 411,317,497,853.34/874,524.20
  6. Step 6: Final answer
    x = 470,332.89

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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.