Home / 762,962.88-1,052,851.20-418,790.40

Finding the Fourth Proportional to 762,962.88, 1,052,851.20 and 418,790.40

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Solution

The fourth proportional to 762,962.88, 1,052,851.20 and 418,790.40 is: 577,910.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,962.88 : 1,052,851.20 = 418,790.40 : x
  2. Step 2: Convert to fraction form
    762,962.88/1,052,851.20 = 418,790.40/x
  3. Step 3: Cross multiply
    762,962.88x = 1,052,851.20 × 418,790.40
  4. Step 4: Simplify right side
    762,962.88x = 440,923,975,188.48
  5. Step 5: Solve for x
    x = 440,923,975,188.48/762,962.88
  6. Step 6: Final answer
    x = 577,910.13

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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.