Home / 1,121,108.54-1,680,848.10-446,987.66

Finding the Fourth Proportional to 1,121,108.54, 1,680,848.10 and 446,987.66

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Solution

The fourth proportional to 1,121,108.54, 1,680,848.10 and 446,987.66 is: 670,156.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,108.54 : 1,680,848.10 = 446,987.66 : x
  2. Step 2: Convert to fraction form
    1,121,108.54/1,680,848.10 = 446,987.66/x
  3. Step 3: Cross multiply
    1,121,108.54x = 1,680,848.10 × 446,987.66
  4. Step 4: Simplify right side
    1,121,108.54x = 751,318,350,630.21
  5. Step 5: Solve for x
    x = 751,318,350,630.21/1,121,108.54
  6. Step 6: Final answer
    x = 670,156.66

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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.