Home / 815,434.56-1,214,885.52-775,282.32

Finding the Fourth Proportional to 815,434.56, 1,214,885.52 and 775,282.32

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Solution

The fourth proportional to 815,434.56, 1,214,885.52 and 775,282.32 is: 1,155,064.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    815,434.56 : 1,214,885.52 = 775,282.32 : x
  2. Step 2: Convert to fraction form
    815,434.56/1,214,885.52 = 775,282.32/x
  3. Step 3: Cross multiply
    815,434.56x = 1,214,885.52 × 775,282.32
  4. Step 4: Simplify right side
    815,434.56x = 941,879,264,480.01
  5. Step 5: Solve for x
    x = 941,879,264,480.01/815,434.56
  6. Step 6: Final answer
    x = 1,155,064.20

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.