Home / 1,107,812.40-1,658,219.40-869,866.80

Finding the Fourth Proportional to 1,107,812.40, 1,658,219.40 and 869,866.80

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Solution

The fourth proportional to 1,107,812.40, 1,658,219.40 and 869,866.80 is: 1,302,052.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,812.40 : 1,658,219.40 = 869,866.80 : x
  2. Step 2: Convert to fraction form
    1,107,812.40/1,658,219.40 = 869,866.80/x
  3. Step 3: Cross multiply
    1,107,812.40x = 1,658,219.40 × 869,866.80
  4. Step 4: Simplify right side
    1,107,812.40x = 1,442,430,003,175.92
  5. Step 5: Solve for x
    x = 1,442,430,003,175.92/1,107,812.40
  6. Step 6: Final answer
    x = 1,302,052.59

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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.