Home / 828,002.10-1,242,003.15-788,636.10

Finding the Fourth Proportional to 828,002.10, 1,242,003.15 and 788,636.10

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Solution

The fourth proportional to 828,002.10, 1,242,003.15 and 788,636.10 is: 1,182,954.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    828,002.10 : 1,242,003.15 = 788,636.10 : x
  2. Step 2: Convert to fraction form
    828,002.10/1,242,003.15 = 788,636.10/x
  3. Step 3: Cross multiply
    828,002.10x = 1,242,003.15 × 788,636.10
  4. Step 4: Simplify right side
    828,002.10x = 979,488,520,403.72
  5. Step 5: Solve for x
    x = 979,488,520,403.72/828,002.10
  6. Step 6: Final answer
    x = 1,182,954.15

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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.