Home / 817,040.70-1,225,559.19-389,278.08

Finding the Fourth Proportional to 817,040.70, 1,225,559.19 and 389,278.08

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Solution

The fourth proportional to 817,040.70, 1,225,559.19 and 389,278.08 is: 583,916.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    817,040.70 : 1,225,559.19 = 389,278.08 : x
  2. Step 2: Convert to fraction form
    817,040.70/1,225,559.19 = 389,278.08/x
  3. Step 3: Cross multiply
    817,040.70x = 1,225,559.19 × 389,278.08
  4. Step 4: Simplify right side
    817,040.70x = 477,083,328,409.56
  5. Step 5: Solve for x
    x = 477,083,328,409.56/817,040.70
  6. Step 6: Final answer
    x = 583,916.23

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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.