Home / 814,274.20-1,123,530.09-470,104.15

Finding the Fourth Proportional to 814,274.20, 1,123,530.09 and 470,104.15

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Solution

The fourth proportional to 814,274.20, 1,123,530.09 and 470,104.15 is: 648,646.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    814,274.20 : 1,123,530.09 = 470,104.15 : x
  2. Step 2: Convert to fraction form
    814,274.20/1,123,530.09 = 470,104.15/x
  3. Step 3: Cross multiply
    814,274.20x = 1,123,530.09 × 470,104.15
  4. Step 4: Simplify right side
    814,274.20x = 528,176,157,958.87
  5. Step 5: Solve for x
    x = 528,176,157,958.87/814,274.20
  6. Step 6: Final answer
    x = 648,646.56

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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.