Home / 389,065.12-583,548.46-104,778.38

Finding the Fourth Proportional to 389,065.12, 583,548.46 and 104,778.38

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Solution

The fourth proportional to 389,065.12, 583,548.46 and 104,778.38 is: 157,154.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,065.12 : 583,548.46 = 104,778.38 : x
  2. Step 2: Convert to fraction form
    389,065.12/583,548.46 = 104,778.38/x
  3. Step 3: Cross multiply
    389,065.12x = 583,548.46 × 104,778.38
  4. Step 4: Simplify right side
    389,065.12x = 61,143,262,290.29
  5. Step 5: Solve for x
    x = 61,143,262,290.29/389,065.12
  6. Step 6: Final answer
    x = 157,154.31

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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.