Home / 1,330,371.40-1,996,809.90-699,737.80

Finding the Fourth Proportional to 1,330,371.40, 1,996,809.90 and 699,737.80

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Solution

The fourth proportional to 1,330,371.40, 1,996,809.90 and 699,737.80 is: 1,050,265.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,330,371.40 : 1,996,809.90 = 699,737.80 : x
  2. Step 2: Convert to fraction form
    1,330,371.40/1,996,809.90 = 699,737.80/x
  3. Step 3: Cross multiply
    1,330,371.40x = 1,996,809.90 × 699,737.80
  4. Step 4: Simplify right side
    1,330,371.40x = 1,397,243,366,444.22
  5. Step 5: Solve for x
    x = 1,397,243,366,444.22/1,330,371.40
  6. Step 6: Final answer
    x = 1,050,265.64

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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.