Home / 810,704.82-1,118,028.69-487,854.66

Finding the Fourth Proportional to 810,704.82, 1,118,028.69 and 487,854.66

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Solution

The fourth proportional to 810,704.82, 1,118,028.69 and 487,854.66 is: 672,791.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,704.82 : 1,118,028.69 = 487,854.66 : x
  2. Step 2: Convert to fraction form
    810,704.82/1,118,028.69 = 487,854.66/x
  3. Step 3: Cross multiply
    810,704.82x = 1,118,028.69 × 487,854.66
  4. Step 4: Simplify right side
    810,704.82x = 545,435,506,430.20
  5. Step 5: Solve for x
    x = 545,435,506,430.20/810,704.82
  6. Step 6: Final answer
    x = 672,791.74

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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.