Home / 1,920,151.10-2,880,216.25-782,908.90

Finding the Fourth Proportional to 1,920,151.10, 2,880,216.25 and 782,908.90

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Solution

The fourth proportional to 1,920,151.10, 2,880,216.25 and 782,908.90 is: 1,174,359.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,920,151.10 : 2,880,216.25 = 782,908.90 : x
  2. Step 2: Convert to fraction form
    1,920,151.10/2,880,216.25 = 782,908.90/x
  3. Step 3: Cross multiply
    1,920,151.10x = 2,880,216.25 × 782,908.90
  4. Step 4: Simplify right side
    1,920,151.10x = 2,254,946,936,049.63
  5. Step 5: Solve for x
    x = 2,254,946,936,049.63/1,920,151.10
  6. Step 6: Final answer
    x = 1,174,359.11

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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.