Home / 839,909.24-1,258,972.65-412,842.81

Finding the Fourth Proportional to 839,909.24, 1,258,972.65 and 412,842.81

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Solution

The fourth proportional to 839,909.24, 1,258,972.65 and 412,842.81 is: 618,826.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,909.24 : 1,258,972.65 = 412,842.81 : x
  2. Step 2: Convert to fraction form
    839,909.24/1,258,972.65 = 412,842.81/x
  3. Step 3: Cross multiply
    839,909.24x = 1,258,972.65 × 412,842.81
  4. Step 4: Simplify right side
    839,909.24x = 519,757,806,539.15
  5. Step 5: Solve for x
    x = 519,757,806,539.15/839,909.24
  6. Step 6: Final answer
    x = 618,826.16

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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.