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Finding the Fourth Proportional to 526,858.27, 726,886.86 and 343,012.88

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Solution

The fourth proportional to 526,858.27, 726,886.86 and 343,012.88 is: 473,242.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,858.27 : 726,886.86 = 343,012.88 : x
  2. Step 2: Convert to fraction form
    526,858.27/726,886.86 = 343,012.88/x
  3. Step 3: Cross multiply
    526,858.27x = 726,886.86 × 343,012.88
  4. Step 4: Simplify right side
    526,858.27x = 249,331,553,654.39
  5. Step 5: Solve for x
    x = 249,331,553,654.39/526,858.27
  6. Step 6: Final answer
    x = 473,242.17

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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.