Home / 1,138,952.80-1,708,688.40-665,394.40

Finding the Fourth Proportional to 1,138,952.80, 1,708,688.40 and 665,394.40

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Solution

The fourth proportional to 1,138,952.80, 1,708,688.40 and 665,394.40 is: 998,243.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,138,952.80 : 1,708,688.40 = 665,394.40 : x
  2. Step 2: Convert to fraction form
    1,138,952.80/1,708,688.40 = 665,394.40/x
  3. Step 3: Cross multiply
    1,138,952.80x = 1,708,688.40 × 665,394.40
  4. Step 4: Simplify right side
    1,138,952.80x = 1,136,951,692,704.96
  5. Step 5: Solve for x
    x = 1,136,951,692,704.96/1,138,952.80
  6. Step 6: Final answer
    x = 998,243.03

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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.