Home / 389,614.40-584,421.60-223,726.40

Finding the Fourth Proportional to 389,614.40, 584,421.60 and 223,726.40

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Solution

The fourth proportional to 389,614.40, 584,421.60 and 223,726.40 is: 335,589.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,614.40 : 584,421.60 = 223,726.40 : x
  2. Step 2: Convert to fraction form
    389,614.40/584,421.60 = 223,726.40/x
  3. Step 3: Cross multiply
    389,614.40x = 584,421.60 × 223,726.40
  4. Step 4: Simplify right side
    389,614.40x = 130,750,540,650.24
  5. Step 5: Solve for x
    x = 130,750,540,650.24/389,614.40
  6. Step 6: Final answer
    x = 335,589.60

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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.