Home / 998,404.20-1,497,800.70-429,784.20

Finding the Fourth Proportional to 998,404.20, 1,497,800.70 and 429,784.20

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Solution

The fourth proportional to 998,404.20, 1,497,800.70 and 429,784.20 is: 644,759.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,404.20 : 1,497,800.70 = 429,784.20 : x
  2. Step 2: Convert to fraction form
    998,404.20/1,497,800.70 = 429,784.20/x
  3. Step 3: Cross multiply
    998,404.20x = 1,497,800.70 × 429,784.20
  4. Step 4: Simplify right side
    998,404.20x = 643,731,075,608.94
  5. Step 5: Solve for x
    x = 643,731,075,608.94/998,404.20
  6. Step 6: Final answer
    x = 644,759.98

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Double scale
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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.