Home / 1,820,929.11-2,512,881.78-1,005,132.58

Finding the Fourth Proportional to 1,820,929.11, 2,512,881.78 and 1,005,132.58

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Solution

The fourth proportional to 1,820,929.11, 2,512,881.78 and 1,005,132.58 is: 1,387,082.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,929.11 : 2,512,881.78 = 1,005,132.58 : x
  2. Step 2: Convert to fraction form
    1,820,929.11/2,512,881.78 = 1,005,132.58/x
  3. Step 3: Cross multiply
    1,820,929.11x = 2,512,881.78 × 1,005,132.58
  4. Step 4: Simplify right side
    1,820,929.11x = 2,525,779,336,714.94
  5. Step 5: Solve for x
    x = 2,525,779,336,714.94/1,820,929.11
  6. Step 6: Final answer
    x = 1,387,082.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.