Home / 991,836.83-1,487,895.35-317,760.45

Finding the Fourth Proportional to 991,836.83, 1,487,895.35 and 317,760.45

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Solution

The fourth proportional to 991,836.83, 1,487,895.35 and 317,760.45 is: 476,685.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,836.83 : 1,487,895.35 = 317,760.45 : x
  2. Step 2: Convert to fraction form
    991,836.83/1,487,895.35 = 317,760.45/x
  3. Step 3: Cross multiply
    991,836.83x = 1,487,895.35 × 317,760.45
  4. Step 4: Simplify right side
    991,836.83x = 472,794,294,380.11
  5. Step 5: Solve for x
    x = 472,794,294,380.11/991,836.83
  6. Step 6: Final answer
    x = 476,685.56

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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.