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Finding the Fourth Proportional to 531,067.51, 732,863.87 and 289,351.82

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Solution

The fourth proportional to 531,067.51, 732,863.87 and 289,351.82 is: 399,300.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    531,067.51 : 732,863.87 = 289,351.82 : x
  2. Step 2: Convert to fraction form
    531,067.51/732,863.87 = 289,351.82/x
  3. Step 3: Cross multiply
    531,067.51x = 732,863.87 × 289,351.82
  4. Step 4: Simplify right side
    531,067.51x = 212,055,496,067.21
  5. Step 5: Solve for x
    x = 212,055,496,067.21/531,067.51
  6. Step 6: Final answer
    x = 399,300.45

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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.