Home / 1,989,752.14-2,745,078.46-1,224,477.10

Finding the Fourth Proportional to 1,989,752.14, 2,745,078.46 and 1,224,477.10

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Solution

The fourth proportional to 1,989,752.14, 2,745,078.46 and 1,224,477.10 is: 1,689,298.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,989,752.14 : 2,745,078.46 = 1,224,477.10 : x
  2. Step 2: Convert to fraction form
    1,989,752.14/2,745,078.46 = 1,224,477.10/x
  3. Step 3: Cross multiply
    1,989,752.14x = 2,745,078.46 × 1,224,477.10
  4. Step 4: Simplify right side
    1,989,752.14x = 3,361,285,712,343.42
  5. Step 5: Solve for x
    x = 3,361,285,712,343.42/1,989,752.14
  6. Step 6: Final answer
    x = 1,689,298.70

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.