Home / 1,438,999.68-1,985,987.52-1,196,855.04

Finding the Fourth Proportional to 1,438,999.68, 1,985,987.52 and 1,196,855.04

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Solution

The fourth proportional to 1,438,999.68, 1,985,987.52 and 1,196,855.04 is: 1,651,799.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,438,999.68 : 1,985,987.52 = 1,196,855.04 : x
  2. Step 2: Convert to fraction form
    1,438,999.68/1,985,987.52 = 1,196,855.04/x
  3. Step 3: Cross multiply
    1,438,999.68x = 1,985,987.52 × 1,196,855.04
  4. Step 4: Simplify right side
    1,438,999.68x = 2,376,939,172,689.10
  5. Step 5: Solve for x
    x = 2,376,939,172,689.10/1,438,999.68
  6. Step 6: Final answer
    x = 1,651,799.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.