Home / 1,086,821.40-1,630,304.10-288,091.80

Finding the Fourth Proportional to 1,086,821.40, 1,630,304.10 and 288,091.80

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Solution

The fourth proportional to 1,086,821.40, 1,630,304.10 and 288,091.80 is: 432,156.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,821.40 : 1,630,304.10 = 288,091.80 : x
  2. Step 2: Convert to fraction form
    1,086,821.40/1,630,304.10 = 288,091.80/x
  3. Step 3: Cross multiply
    1,086,821.40x = 1,630,304.10 × 288,091.80
  4. Step 4: Simplify right side
    1,086,821.40x = 469,677,242,716.38
  5. Step 5: Solve for x
    x = 469,677,242,716.38/1,086,821.40
  6. Step 6: Final answer
    x = 432,156.79

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1.5x scale

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.