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Finding the Fourth Proportional to 502,152.78, 692,968.47 and 272,708.46

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Solution

The fourth proportional to 502,152.78, 692,968.47 and 272,708.46 is: 376,336.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    502,152.78 : 692,968.47 = 272,708.46 : x
  2. Step 2: Convert to fraction form
    502,152.78/692,968.47 = 272,708.46/x
  3. Step 3: Cross multiply
    502,152.78x = 692,968.47 × 272,708.46
  4. Step 4: Simplify right side
    502,152.78x = 188,978,364,282.26
  5. Step 5: Solve for x
    x = 188,978,364,282.26/502,152.78
  6. Step 6: Final answer
    x = 376,336.39

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1.5x scale

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.