Home / 912,723.78-1,368,794.53-313,540.46

Finding the Fourth Proportional to 912,723.78, 1,368,794.53 and 313,540.46

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Solution

The fourth proportional to 912,723.78, 1,368,794.53 and 313,540.46 is: 470,210.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    912,723.78 : 1,368,794.53 = 313,540.46 : x
  2. Step 2: Convert to fraction form
    912,723.78/1,368,794.53 = 313,540.46/x
  3. Step 3: Cross multiply
    912,723.78x = 1,368,794.53 × 313,540.46
  4. Step 4: Simplify right side
    912,723.78x = 429,172,466,581.68
  5. Step 5: Solve for x
    x = 429,172,466,581.68/912,723.78
  6. Step 6: Final answer
    x = 470,210.68

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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.