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Finding the Fourth Proportional to 360,493.70, 540,740.55 and 313,837.70

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Solution

The fourth proportional to 360,493.70, 540,740.55 and 313,837.70 is: 470,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,493.70 : 540,740.55 = 313,837.70 : x
  2. Step 2: Convert to fraction form
    360,493.70/540,740.55 = 313,837.70/x
  3. Step 3: Cross multiply
    360,493.70x = 540,740.55 × 313,837.70
  4. Step 4: Simplify right side
    360,493.70x = 169,704,770,508.74
  5. Step 5: Solve for x
    x = 169,704,770,508.74/360,493.70
  6. Step 6: Final answer
    x = 470,756.55

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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.