Home / 626,419.46-864,459.42-339,939.55

Finding the Fourth Proportional to 626,419.46, 864,459.42 and 339,939.55

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Solution

The fourth proportional to 626,419.46, 864,459.42 and 339,939.55 is: 469,116.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,419.46 : 864,459.42 = 339,939.55 : x
  2. Step 2: Convert to fraction form
    626,419.46/864,459.42 = 339,939.55/x
  3. Step 3: Cross multiply
    626,419.46x = 864,459.42 × 339,939.55
  4. Step 4: Simplify right side
    626,419.46x = 293,863,946,228.06
  5. Step 5: Solve for x
    x = 293,863,946,228.06/626,419.46
  6. Step 6: Final answer
    x = 469,116.89

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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.