Home / 1,855,484.63-2,781,514.42-1,287,133.90

Finding the Fourth Proportional to 1,855,484.63, 2,781,514.42 and 1,287,133.90

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Solution

The fourth proportional to 1,855,484.63, 2,781,514.42 and 1,287,133.90 is: 1,929,512.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,855,484.63 : 2,781,514.42 = 1,287,133.90 : x
  2. Step 2: Convert to fraction form
    1,855,484.63/2,781,514.42 = 1,287,133.90/x
  3. Step 3: Cross multiply
    1,855,484.63x = 2,781,514.42 × 1,287,133.90
  4. Step 4: Simplify right side
    1,855,484.63x = 3,580,181,518,137.04
  5. Step 5: Solve for x
    x = 3,580,181,518,137.04/1,855,484.63
  6. Step 6: Final answer
    x = 1,929,512.89

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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.