Home / 814,749.90-1,222,123.77-459,602.70

Finding the Fourth Proportional to 814,749.90, 1,222,123.77 and 459,602.70

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Solution

The fourth proportional to 814,749.90, 1,222,123.77 and 459,602.70 is: 689,403.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,749.90 : 1,222,123.77 = 459,602.70 : x
  2. Step 2: Convert to fraction form
    814,749.90/1,222,123.77 = 459,602.70/x
  3. Step 3: Cross multiply
    814,749.90x = 1,222,123.77 × 459,602.70
  4. Step 4: Simplify right side
    814,749.90x = 561,691,384,426.18
  5. Step 5: Solve for x
    x = 561,691,384,426.18/814,749.90
  6. Step 6: Final answer
    x = 689,403.44

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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.