Home / 749,399.63-1,034,171.51-409,867.88

Finding the Fourth Proportional to 749,399.63, 1,034,171.51 and 409,867.88

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Solution

The fourth proportional to 749,399.63, 1,034,171.51 and 409,867.88 is: 565,617.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    749,399.63 : 1,034,171.51 = 409,867.88 : x
  2. Step 2: Convert to fraction form
    749,399.63/1,034,171.51 = 409,867.88/x
  3. Step 3: Cross multiply
    749,399.63x = 1,034,171.51 × 409,867.88
  4. Step 4: Simplify right side
    749,399.63x = 423,873,677,139.90
  5. Step 5: Solve for x
    x = 423,873,677,139.90/749,399.63
  6. Step 6: Final answer
    x = 565,617.68

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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.