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Finding the Third Proportional to 1,280,742.75 and 1,929,528

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Solution

The third proportional to 1,280,742.75 and 1,929,528 is: 2,906,968.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,280,742.75 : 1,929,528 = 1,929,528 : x
  2. Step 2: Convert to fraction form
    1,280,742.75/1,929,528 = 1,929,528/x
  3. Step 3: Cross multiply
    1,280,742.75x = 1,929,528 × 1,929,528
  4. Step 4: Simplify right side
    1,280,742.75x = 3,723,078,302,784
  5. Step 5: Solve for x
    x = 3,723,078,302,784/1,280,742.75
  6. Step 6: Final answer
    x = 2,906,968.09

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.