Home / 1,536,691.45-2,120,911.79-916,536.39

Finding the Fourth Proportional to 1,536,691.45, 2,120,911.79 and 916,536.39

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Solution

The fourth proportional to 1,536,691.45, 2,120,911.79 and 916,536.39 is: 1,264,985.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,536,691.45 : 2,120,911.79 = 916,536.39 : x
  2. Step 2: Convert to fraction form
    1,536,691.45/2,120,911.79 = 916,536.39/x
  3. Step 3: Cross multiply
    1,536,691.45x = 2,120,911.79 × 916,536.39
  4. Step 4: Simplify right side
    1,536,691.45x = 1,943,892,835,515.04
  5. Step 5: Solve for x
    x = 1,943,892,835,515.04/1,536,691.45
  6. Step 6: Final answer
    x = 1,264,985.78

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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.