Home / 313,854.20-470,781.30-288,049.40

Finding the Fourth Proportional to 313,854.20, 470,781.30 and 288,049.40

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Solution

The fourth proportional to 313,854.20, 470,781.30 and 288,049.40 is: 432,074.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,854.20 : 470,781.30 = 288,049.40 : x
  2. Step 2: Convert to fraction form
    313,854.20/470,781.30 = 288,049.40/x
  3. Step 3: Cross multiply
    313,854.20x = 470,781.30 × 288,049.40
  4. Step 4: Simplify right side
    313,854.20x = 135,608,270,996.22
  5. Step 5: Solve for x
    x = 135,608,270,996.22/313,854.20
  6. Step 6: Final answer
    x = 432,074.10

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1.5x scale

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.