Home / 1,820,870.74-2,512,801.90-1,005,074.66

Finding the Fourth Proportional to 1,820,870.74, 2,512,801.90 and 1,005,074.66

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Solution

The fourth proportional to 1,820,870.74, 2,512,801.90 and 1,005,074.66 is: 1,387,003.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,820,870.74 : 2,512,801.90 = 1,005,074.66 : x
  2. Step 2: Convert to fraction form
    1,820,870.74/2,512,801.90 = 1,005,074.66/x
  3. Step 3: Cross multiply
    1,820,870.74x = 2,512,801.90 × 1,005,074.66
  4. Step 4: Simplify right side
    1,820,870.74x = 2,525,553,515,289.85
  5. Step 5: Solve for x
    x = 2,525,553,515,289.85/1,820,870.74
  6. Step 6: Final answer
    x = 1,387,003.18

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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.