Home / 900,519.78-1,348,614.99-515,100.51

Finding the Fourth Proportional to 900,519.78, 1,348,614.99 and 515,100.51

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Solution

The fourth proportional to 900,519.78, 1,348,614.99 and 515,100.51 is: 771,412.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    900,519.78 : 1,348,614.99 = 515,100.51 : x
  2. Step 2: Convert to fraction form
    900,519.78/1,348,614.99 = 515,100.51/x
  3. Step 3: Cross multiply
    900,519.78x = 1,348,614.99 × 515,100.51
  4. Step 4: Simplify right side
    900,519.78x = 694,672,269,142.65
  5. Step 5: Solve for x
    x = 694,672,269,142.65/900,519.78
  6. Step 6: Final answer
    x = 771,412.56

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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.