Home / 998,171.80-1,497,257.70-921,189.40

Finding the Fourth Proportional to 998,171.80, 1,497,257.70 and 921,189.40

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Solution

The fourth proportional to 998,171.80, 1,497,257.70 and 921,189.40 is: 1,381,784.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,171.80 : 1,497,257.70 = 921,189.40 : x
  2. Step 2: Convert to fraction form
    998,171.80/1,497,257.70 = 921,189.40/x
  3. Step 3: Cross multiply
    998,171.80x = 1,497,257.70 × 921,189.40
  4. Step 4: Simplify right side
    998,171.80x = 1,379,257,922,308.38
  5. Step 5: Solve for x
    x = 1,379,257,922,308.38/998,171.80
  6. Step 6: Final answer
    x = 1,381,784.10

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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.