Home / 753,406.56-1,039,709.52-409,245.48

Finding the Fourth Proportional to 753,406.56, 1,039,709.52 and 409,245.48

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Solution

The fourth proportional to 753,406.56, 1,039,709.52 and 409,245.48 is: 564,763.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    753,406.56 : 1,039,709.52 = 409,245.48 : x
  2. Step 2: Convert to fraction form
    753,406.56/1,039,709.52 = 409,245.48/x
  3. Step 3: Cross multiply
    753,406.56x = 1,039,709.52 × 409,245.48
  4. Step 4: Simplify right side
    753,406.56x = 425,496,421,572.97
  5. Step 5: Solve for x
    x = 425,496,421,572.97/753,406.56
  6. Step 6: Final answer
    x = 564,763.36

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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.