Home / 761,381.82-1,141,948.80-287,954.64

Finding the Fourth Proportional to 761,381.82, 1,141,948.80 and 287,954.64

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Solution

The fourth proportional to 761,381.82, 1,141,948.80 and 287,954.64 is: 431,885.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    761,381.82 : 1,141,948.80 = 287,954.64 : x
  2. Step 2: Convert to fraction form
    761,381.82/1,141,948.80 = 287,954.64/x
  3. Step 3: Cross multiply
    761,381.82x = 1,141,948.80 × 287,954.64
  4. Step 4: Simplify right side
    761,381.82x = 328,829,455,602.43
  5. Step 5: Solve for x
    x = 328,829,455,602.43/761,381.82
  6. Step 6: Final answer
    x = 431,885.09

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.