Home / 1,404,429.40-2,106,644.10-865,115.20

Finding the Fourth Proportional to 1,404,429.40, 2,106,644.10 and 865,115.20

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Solution

The fourth proportional to 1,404,429.40, 2,106,644.10 and 865,115.20 is: 1,297,672.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,404,429.40 : 2,106,644.10 = 865,115.20 : x
  2. Step 2: Convert to fraction form
    1,404,429.40/2,106,644.10 = 865,115.20/x
  3. Step 3: Cross multiply
    1,404,429.40x = 2,106,644.10 × 865,115.20
  4. Step 4: Simplify right side
    1,404,429.40x = 1,822,489,831,900.32
  5. Step 5: Solve for x
    x = 1,822,489,831,900.32/1,404,429.40
  6. Step 6: Final answer
    x = 1,297,672.80

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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.