Home / 998,805.87-1,499,274.95-430,467.45

Finding the Fourth Proportional to 998,805.87, 1,499,274.95 and 430,467.45

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Solution

The fourth proportional to 998,805.87, 1,499,274.95 and 430,467.45 is: 646,160.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,805.87 : 1,499,274.95 = 430,467.45 : x
  2. Step 2: Convert to fraction form
    998,805.87/1,499,274.95 = 430,467.45/x
  3. Step 3: Cross multiply
    998,805.87x = 1,499,274.95 × 430,467.45
  4. Step 4: Simplify right side
    998,805.87x = 645,389,064,575.38
  5. Step 5: Solve for x
    x = 645,389,064,575.38/998,805.87
  6. Step 6: Final answer
    x = 646,160.66

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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.