Home / 2,788,946.78-4,185,189.81-1,191,521.88

Finding the Fourth Proportional to 2,788,946.78, 4,185,189.81 and 1,191,521.88

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Solution

The fourth proportional to 2,788,946.78, 4,185,189.81 and 1,191,521.88 is: 1,788,038.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,788,946.78 : 4,185,189.81 = 1,191,521.88 : x
  2. Step 2: Convert to fraction form
    2,788,946.78/4,185,189.81 = 1,191,521.88/x
  3. Step 3: Cross multiply
    2,788,946.78x = 4,185,189.81 × 1,191,521.88
  4. Step 4: Simplify right side
    2,788,946.78x = 4,986,745,230,568.04
  5. Step 5: Solve for x
    x = 4,986,745,230,568.04/2,788,946.78
  6. Step 6: Final answer
    x = 1,788,038.87

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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.