Home / 753,900.24-1,040,390.40-409,736.24

Finding the Fourth Proportional to 753,900.24, 1,040,390.40 and 409,736.24

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Solution

The fourth proportional to 753,900.24, 1,040,390.40 and 409,736.24 is: 565,440.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,900.24 : 1,040,390.40 = 409,736.24 : x
  2. Step 2: Convert to fraction form
    753,900.24/1,040,390.40 = 409,736.24/x
  3. Step 3: Cross multiply
    753,900.24x = 1,040,390.40 × 409,736.24
  4. Step 4: Simplify right side
    753,900.24x = 426,285,650,628.10
  5. Step 5: Solve for x
    x = 426,285,650,628.10/753,900.24
  6. Step 6: Final answer
    x = 565,440.40

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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.