Home / 389,328.74-583,989.40-123,089.22

Finding the Fourth Proportional to 389,328.74, 583,989.40 and 123,089.22

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Solution

The fourth proportional to 389,328.74, 583,989.40 and 123,089.22 is: 184,632.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,328.74 : 583,989.40 = 123,089.22 : x
  2. Step 2: Convert to fraction form
    389,328.74/583,989.40 = 123,089.22/x
  3. Step 3: Cross multiply
    389,328.74x = 583,989.40 × 123,089.22
  4. Step 4: Simplify right side
    389,328.74x = 71,882,799,734.27
  5. Step 5: Solve for x
    x = 71,882,799,734.27/389,328.74
  6. Step 6: Final answer
    x = 184,632.66

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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.