Home / 998,557.60-1,498,030.80-429,937.60

Finding the Fourth Proportional to 998,557.60, 1,498,030.80 and 429,937.60

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Solution

The fourth proportional to 998,557.60, 1,498,030.80 and 429,937.60 is: 644,990.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    998,557.60 : 1,498,030.80 = 429,937.60 : x
  2. Step 2: Convert to fraction form
    998,557.60/1,498,030.80 = 429,937.60/x
  3. Step 3: Cross multiply
    998,557.60x = 1,498,030.80 × 429,937.60
  4. Step 4: Simplify right side
    998,557.60x = 644,059,766,878.08
  5. Step 5: Solve for x
    x = 644,059,766,878.08/998,557.60
  6. Step 6: Final answer
    x = 644,990.10

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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.