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Finding the Fourth Proportional to 526,398.86, 726,434.80 and 300,058.94

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Solution

The fourth proportional to 526,398.86, 726,434.80 and 300,058.94 is: 414,083.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    526,398.86 : 726,434.80 = 300,058.94 : x
  2. Step 2: Convert to fraction form
    526,398.86/726,434.80 = 300,058.94/x
  3. Step 3: Cross multiply
    526,398.86x = 726,434.80 × 300,058.94
  4. Step 4: Simplify right side
    526,398.86x = 217,973,256,067.11
  5. Step 5: Solve for x
    x = 217,973,256,067.11/526,398.86
  6. Step 6: Final answer
    x = 414,083.83

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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.