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Finding the Fourth Proportional to 626,254.42, 864,231.14 and 339,774.52

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Solution

The fourth proportional to 626,254.42, 864,231.14 and 339,774.52 is: 468,888.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    626,254.42 : 864,231.14 = 339,774.52 : x
  2. Step 2: Convert to fraction form
    626,254.42/864,231.14 = 339,774.52/x
  3. Step 3: Cross multiply
    626,254.42x = 864,231.14 × 339,774.52
  4. Step 4: Simplify right side
    626,254.42x = 293,643,720,762.55
  5. Step 5: Solve for x
    x = 293,643,720,762.55/626,254.42
  6. Step 6: Final answer
    x = 468,888.86

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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.