Home / 389,767.05-584,668.80-123,548.40

Finding the Fourth Proportional to 389,767.05, 584,668.80 and 123,548.40

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Solution

The fourth proportional to 389,767.05, 584,668.80 and 123,548.40 is: 185,328.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,767.05 : 584,668.80 = 123,548.40 : x
  2. Step 2: Convert to fraction form
    389,767.05/584,668.80 = 123,548.40/x
  3. Step 3: Cross multiply
    389,767.05x = 584,668.80 × 123,548.40
  4. Step 4: Simplify right side
    389,767.05x = 72,234,894,769.92
  5. Step 5: Solve for x
    x = 72,234,894,769.92/389,767.05
  6. Step 6: Final answer
    x = 185,328.38

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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.