Home / 1,820,962.91-2,512,929.32-1,005,167.12

Finding the Fourth Proportional to 1,820,962.91, 2,512,929.32 and 1,005,167.12

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Solution

The fourth proportional to 1,820,962.91, 2,512,929.32 and 1,005,167.12 is: 1,387,130.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,962.91 : 2,512,929.32 = 1,005,167.12 : x
  2. Step 2: Convert to fraction form
    1,820,962.91/2,512,929.32 = 1,005,167.12/x
  3. Step 3: Cross multiply
    1,820,962.91x = 2,512,929.32 × 1,005,167.12
  4. Step 4: Simplify right side
    1,820,962.91x = 2,525,913,909,757.48
  5. Step 5: Solve for x
    x = 2,525,913,909,757.48/1,820,962.91
  6. Step 6: Final answer
    x = 1,387,130.90

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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.