Home / 810,506.74-1,118,638.20-471,171.82

Finding the Fourth Proportional to 810,506.74, 1,118,638.20 and 471,171.82

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Solution

The fourth proportional to 810,506.74, 1,118,638.20 and 471,171.82 is: 650,297.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    810,506.74 : 1,118,638.20 = 471,171.82 : x
  2. Step 2: Convert to fraction form
    810,506.74/1,118,638.20 = 471,171.82/x
  3. Step 3: Cross multiply
    810,506.74x = 1,118,638.20 × 471,171.82
  4. Step 4: Simplify right side
    810,506.74x = 527,070,796,615.52
  5. Step 5: Solve for x
    x = 527,070,796,615.52/810,506.74
  6. Step 6: Final answer
    x = 650,297.86

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Double scale
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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.