Home / 998,493.40-1,497,740.10-438,621.40

Finding the Fourth Proportional to 998,493.40, 1,497,740.10 and 438,621.40

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Solution

The fourth proportional to 998,493.40, 1,497,740.10 and 438,621.40 is: 657,932.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,493.40 : 1,497,740.10 = 438,621.40 : x
  2. Step 2: Convert to fraction form
    998,493.40/1,497,740.10 = 438,621.40/x
  3. Step 3: Cross multiply
    998,493.40x = 1,497,740.10 × 438,621.40
  4. Step 4: Simplify right side
    998,493.40x = 656,940,859,498.14
  5. Step 5: Solve for x
    x = 656,940,859,498.14/998,493.40
  6. Step 6: Final answer
    x = 657,932.10

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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.