Home / 998,923.20-1,498,384.80-288,974.40

Finding the Fourth Proportional to 998,923.20, 1,498,384.80 and 288,974.40

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Solution

The fourth proportional to 998,923.20, 1,498,384.80 and 288,974.40 is: 433,461.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,923.20 : 1,498,384.80 = 288,974.40 : x
  2. Step 2: Convert to fraction form
    998,923.20/1,498,384.80 = 288,974.40/x
  3. Step 3: Cross multiply
    998,923.20x = 1,498,384.80 × 288,974.40
  4. Step 4: Simplify right side
    998,923.20x = 432,994,848,549.12
  5. Step 5: Solve for x
    x = 432,994,848,549.12/998,923.20
  6. Step 6: Final answer
    x = 433,461.60

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Double scale
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Similar ratio
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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.