Home / 891,921.49-1,230,854.89-484,023.21

Finding the Fourth Proportional to 891,921.49, 1,230,854.89 and 484,023.21

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Solution

The fourth proportional to 891,921.49, 1,230,854.89 and 484,023.21 is: 667,953.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,921.49 : 1,230,854.89 = 484,023.21 : x
  2. Step 2: Convert to fraction form
    891,921.49/1,230,854.89 = 484,023.21/x
  3. Step 3: Cross multiply
    891,921.49x = 1,230,854.89 × 484,023.21
  4. Step 4: Simplify right side
    891,921.49x = 595,762,336,907.34
  5. Step 5: Solve for x
    x = 595,762,336,907.34/891,921.49
  6. Step 6: Final answer
    x = 667,953.78

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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.