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Finding the Fourth Proportional to 530,998.20, 732,877.74 and 304,791.48

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Solution

The fourth proportional to 530,998.20, 732,877.74 and 304,791.48 is: 420,669.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    530,998.20 : 732,877.74 = 304,791.48 : x
  2. Step 2: Convert to fraction form
    530,998.20/732,877.74 = 304,791.48/x
  3. Step 3: Cross multiply
    530,998.20x = 732,877.74 × 304,791.48
  4. Step 4: Simplify right side
    530,998.20x = 223,374,891,033.66
  5. Step 5: Solve for x
    x = 223,374,891,033.66/530,998.20
  6. Step 6: Final answer
    x = 420,669.77

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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.