Home / 1,284,498.90-1,926,165.15-485,514.90

Finding the Fourth Proportional to 1,284,498.90, 1,926,165.15 and 485,514.90

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Solution

The fourth proportional to 1,284,498.90, 1,926,165.15 and 485,514.90 is: 728,051.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,284,498.90 : 1,926,165.15 = 485,514.90 : x
  2. Step 2: Convert to fraction form
    1,284,498.90/1,926,165.15 = 485,514.90/x
  3. Step 3: Cross multiply
    1,284,498.90x = 1,926,165.15 × 485,514.90
  4. Step 4: Simplify right side
    1,284,498.90x = 935,181,880,185.74
  5. Step 5: Solve for x
    x = 935,181,880,185.74/1,284,498.90
  6. Step 6: Final answer
    x = 728,051.91

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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.