Home / 1,296,132.90-1,944,199.35-1,240,145.70

Finding the Fourth Proportional to 1,296,132.90, 1,944,199.35 and 1,240,145.70

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Solution

The fourth proportional to 1,296,132.90, 1,944,199.35 and 1,240,145.70 is: 1,860,218.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,132.90 : 1,944,199.35 = 1,240,145.70 : x
  2. Step 2: Convert to fraction form
    1,296,132.90/1,944,199.35 = 1,240,145.70/x
  3. Step 3: Cross multiply
    1,296,132.90x = 1,944,199.35 × 1,240,145.70
  4. Step 4: Simplify right side
    1,296,132.90x = 2,411,090,463,845.30
  5. Step 5: Solve for x
    x = 2,411,090,463,845.30/1,296,132.90
  6. Step 6: Final answer
    x = 1,860,218.55

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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.