Home / 1,515,339.63-2,272,926.39-916,139.90

Finding the Fourth Proportional to 1,515,339.63, 2,272,926.39 and 916,139.90

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Solution

The fourth proportional to 1,515,339.63, 2,272,926.39 and 916,139.90 is: 1,374,159.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,515,339.63 : 2,272,926.39 = 916,139.90 : x
  2. Step 2: Convert to fraction form
    1,515,339.63/2,272,926.39 = 916,139.90/x
  3. Step 3: Cross multiply
    1,515,339.63x = 2,272,926.39 × 916,139.90
  4. Step 4: Simplify right side
    1,515,339.63x = 2,082,318,544,277.33
  5. Step 5: Solve for x
    x = 2,082,318,544,277.33/1,515,339.63
  6. Step 6: Final answer
    x = 1,374,159.63

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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.