Home / 1,129,019.55-1,691,130.35-764,502.64

Finding the Fourth Proportional to 1,129,019.55, 1,691,130.35 and 764,502.64

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Solution

The fourth proportional to 1,129,019.55, 1,691,130.35 and 764,502.64 is: 1,145,129.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,129,019.55 : 1,691,130.35 = 764,502.64 : x
  2. Step 2: Convert to fraction form
    1,129,019.55/1,691,130.35 = 764,502.64/x
  3. Step 3: Cross multiply
    1,129,019.55x = 1,691,130.35 × 764,502.64
  4. Step 4: Simplify right side
    1,129,019.55x = 1,292,873,614,842.55
  5. Step 5: Solve for x
    x = 1,292,873,614,842.55/1,129,019.55
  6. Step 6: Final answer
    x = 1,145,129.52

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.