Home / 763,057.60-1,053,112.80-423,635.20

Finding the Fourth Proportional to 763,057.60, 1,053,112.80 and 423,635.20

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Solution

The fourth proportional to 763,057.60, 1,053,112.80 and 423,635.20 is: 584,668.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    763,057.60 : 1,053,112.80 = 423,635.20 : x
  2. Step 2: Convert to fraction form
    763,057.60/1,053,112.80 = 423,635.20/x
  3. Step 3: Cross multiply
    763,057.60x = 1,053,112.80 × 423,635.20
  4. Step 4: Simplify right side
    763,057.60x = 446,135,651,650.56
  5. Step 5: Solve for x
    x = 446,135,651,650.56/763,057.60
  6. Step 6: Final answer
    x = 584,668.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.