Home / 1,511,678.40-2,264,893.20-978,925.20

Finding the Fourth Proportional to 1,511,678.40, 2,264,893.20 and 978,925.20

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Solution

The fourth proportional to 1,511,678.40, 2,264,893.20 and 978,925.20 is: 1,466,688.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,511,678.40 : 2,264,893.20 = 978,925.20 : x
  2. Step 2: Convert to fraction form
    1,511,678.40/2,264,893.20 = 978,925.20/x
  3. Step 3: Cross multiply
    1,511,678.40x = 2,264,893.20 × 978,925.20
  4. Step 4: Simplify right side
    1,511,678.40x = 2,217,161,028,788.64
  5. Step 5: Solve for x
    x = 2,217,161,028,788.64/1,511,678.40
  6. Step 6: Final answer
    x = 1,466,688.30

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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.