Home / 1,031,146.80-1,546,720.20-865,809.60

Finding the Fourth Proportional to 1,031,146.80, 1,546,720.20 and 865,809.60

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Solution

The fourth proportional to 1,031,146.80, 1,546,720.20 and 865,809.60 is: 1,298,714.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,031,146.80 : 1,546,720.20 = 865,809.60 : x
  2. Step 2: Convert to fraction form
    1,031,146.80/1,546,720.20 = 865,809.60/x
  3. Step 3: Cross multiply
    1,031,146.80x = 1,546,720.20 × 865,809.60
  4. Step 4: Simplify right side
    1,031,146.80x = 1,339,165,197,673.92
  5. Step 5: Solve for x
    x = 1,339,165,197,673.92/1,031,146.80
  6. Step 6: Final answer
    x = 1,298,714.40

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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.