Home / 1,243,676.20-1,865,514.30-865,762.60

Finding the Fourth Proportional to 1,243,676.20, 1,865,514.30 and 865,762.60

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Solution

The fourth proportional to 1,243,676.20, 1,865,514.30 and 865,762.60 is: 1,298,643.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,243,676.20 : 1,865,514.30 = 865,762.60 : x
  2. Step 2: Convert to fraction form
    1,243,676.20/1,865,514.30 = 865,762.60/x
  3. Step 3: Cross multiply
    1,243,676.20x = 1,865,514.30 × 865,762.60
  4. Step 4: Simplify right side
    1,243,676.20x = 1,615,092,510,705.18
  5. Step 5: Solve for x
    x = 1,615,092,510,705.18/1,243,676.20
  6. Step 6: Final answer
    x = 1,298,643.90

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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.