Home / 815,279.38-1,125,117.90-471,103.90

Finding the Fourth Proportional to 815,279.38, 1,125,117.90 and 471,103.90

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Solution

The fourth proportional to 815,279.38, 1,125,117.90 and 471,103.90 is: 650,142.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,279.38 : 1,125,117.90 = 471,103.90 : x
  2. Step 2: Convert to fraction form
    815,279.38/1,125,117.90 = 471,103.90/x
  3. Step 3: Cross multiply
    815,279.38x = 1,125,117.90 × 471,103.90
  4. Step 4: Simplify right side
    815,279.38x = 530,047,430,649.81
  5. Step 5: Solve for x
    x = 530,047,430,649.81/815,279.38
  6. Step 6: Final answer
    x = 650,142.08

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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.