Home / 991,312.38-1,486,969.65-271,660.23

Finding the Fourth Proportional to 991,312.38, 1,486,969.65 and 271,660.23

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Solution

The fourth proportional to 991,312.38, 1,486,969.65 and 271,660.23 is: 407,490.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    991,312.38 : 1,486,969.65 = 271,660.23 : x
  2. Step 2: Convert to fraction form
    991,312.38/1,486,969.65 = 271,660.23/x
  3. Step 3: Cross multiply
    991,312.38x = 1,486,969.65 × 271,660.23
  4. Step 4: Simplify right side
    991,312.38x = 403,950,517,122.02
  5. Step 5: Solve for x
    x = 403,950,517,122.02/991,312.38
  6. Step 6: Final answer
    x = 407,490.64

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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.