Home / 814,414.85-1,123,945.65-470,265.29

Finding the Fourth Proportional to 814,414.85, 1,123,945.65 and 470,265.29

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Solution

The fourth proportional to 814,414.85, 1,123,945.65 and 470,265.29 is: 648,996.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,414.85 : 1,123,945.65 = 470,265.29 : x
  2. Step 2: Convert to fraction form
    814,414.85/1,123,945.65 = 470,265.29/x
  3. Step 3: Cross multiply
    814,414.85x = 1,123,945.65 × 470,265.29
  4. Step 4: Simplify right side
    814,414.85x = 528,552,627,041.49
  5. Step 5: Solve for x
    x = 528,552,627,041.49/814,414.85
  6. Step 6: Final answer
    x = 648,996.79

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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.