Home / 998,738.40-1,497,864.60-288,692.40

Finding the Fourth Proportional to 998,738.40, 1,497,864.60 and 288,692.40

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Solution

The fourth proportional to 998,738.40, 1,497,864.60 and 288,692.40 is: 432,968.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,738.40 : 1,497,864.60 = 288,692.40 : x
  2. Step 2: Convert to fraction form
    998,738.40/1,497,864.60 = 288,692.40/x
  3. Step 3: Cross multiply
    998,738.40x = 1,497,864.60 × 288,692.40
  4. Step 4: Simplify right side
    998,738.40x = 432,422,126,249.04
  5. Step 5: Solve for x
    x = 432,422,126,249.04/998,738.40
  6. Step 6: Final answer
    x = 432,968.36

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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.