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Finding the Fourth Proportional to 499,247.20, 748,870.80 and 475,919.20

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Solution

The fourth proportional to 499,247.20, 748,870.80 and 475,919.20 is: 713,878.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,247.20 : 748,870.80 = 475,919.20 : x
  2. Step 2: Convert to fraction form
    499,247.20/748,870.80 = 475,919.20/x
  3. Step 3: Cross multiply
    499,247.20x = 748,870.80 × 475,919.20
  4. Step 4: Simplify right side
    499,247.20x = 356,401,992,039.36
  5. Step 5: Solve for x
    x = 356,401,992,039.36/499,247.20
  6. Step 6: Final answer
    x = 713,878.80

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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.