Home / 402,766.40-555,679.28-249,749.44

Finding the Fourth Proportional to 402,766.40, 555,679.28 and 249,749.44

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Solution

The fourth proportional to 402,766.40, 555,679.28 and 249,749.44 is: 344,568.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,766.40 : 555,679.28 = 249,749.44 : x
  2. Step 2: Convert to fraction form
    402,766.40/555,679.28 = 249,749.44/x
  3. Step 3: Cross multiply
    402,766.40x = 555,679.28 × 249,749.44
  4. Step 4: Simplify right side
    402,766.40x = 138,780,588,999.60
  5. Step 5: Solve for x
    x = 138,780,588,999.60/402,766.40
  6. Step 6: Final answer
    x = 344,568.44

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.