Home / 775,654.55-1,070,390.34-431,486.36

Finding the Fourth Proportional to 775,654.55, 1,070,390.34 and 431,486.36

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Solution

The fourth proportional to 775,654.55, 1,070,390.34 and 431,486.36 is: 595,443.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    775,654.55 : 1,070,390.34 = 431,486.36 : x
  2. Step 2: Convert to fraction form
    775,654.55/1,070,390.34 = 431,486.36/x
  3. Step 3: Cross multiply
    775,654.55x = 1,070,390.34 × 431,486.36
  4. Step 4: Simplify right side
    775,654.55x = 461,858,831,585.76
  5. Step 5: Solve for x
    x = 461,858,831,585.76/775,654.55
  6. Step 6: Final answer
    x = 595,443.98

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Double scale
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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.