Home / 762,611.30-1,052,368.28-418,438.64

Finding the Fourth Proportional to 762,611.30, 1,052,368.28 and 418,438.64

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Solution

The fourth proportional to 762,611.30, 1,052,368.28 and 418,438.64 is: 577,425.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,611.30 : 1,052,368.28 = 418,438.64 : x
  2. Step 2: Convert to fraction form
    762,611.30/1,052,368.28 = 418,438.64/x
  3. Step 3: Cross multiply
    762,611.30x = 1,052,368.28 × 418,438.64
  4. Step 4: Simplify right side
    762,611.30x = 440,351,551,862.34
  5. Step 5: Solve for x
    x = 440,351,551,862.34/762,611.30
  6. Step 6: Final answer
    x = 577,425.95

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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.