Home / 998,403.20-1,497,799.20-429,783.20

Finding the Fourth Proportional to 998,403.20, 1,497,799.20 and 429,783.20

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Solution

The fourth proportional to 998,403.20, 1,497,799.20 and 429,783.20 is: 644,758.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,403.20 : 1,497,799.20 = 429,783.20 : x
  2. Step 2: Convert to fraction form
    998,403.20/1,497,799.20 = 429,783.20/x
  3. Step 3: Cross multiply
    998,403.20x = 1,497,799.20 × 429,783.20
  4. Step 4: Simplify right side
    998,403.20x = 643,728,933,133.44
  5. Step 5: Solve for x
    x = 643,728,933,133.44/998,403.20
  6. Step 6: Final answer
    x = 644,758.48

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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.