Home / 626,833.89-865,031.40-340,353.90

Finding the Fourth Proportional to 626,833.89, 865,031.40 and 340,353.90

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Solution

The fourth proportional to 626,833.89, 865,031.40 and 340,353.90 is: 469,688.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,833.89 : 865,031.40 = 340,353.90 : x
  2. Step 2: Convert to fraction form
    626,833.89/865,031.40 = 340,353.90/x
  3. Step 3: Cross multiply
    626,833.89x = 865,031.40 × 340,353.90
  4. Step 4: Simplify right side
    626,833.89x = 294,416,810,612.46
  5. Step 5: Solve for x
    x = 294,416,810,612.46/626,833.89
  6. Step 6: Final answer
    x = 469,688.73

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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.