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Finding the Third Proportional to 572,428 and 1,243,271

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Solution

The third proportional to 572,428 and 1,243,271 is: 2,700,292.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    572,428 : 1,243,271 = 1,243,271 : x
  2. Step 2: Convert to fraction form
    572,428/1,243,271 = 1,243,271/x
  3. Step 3: Cross multiply
    572,428x = 1,243,271 × 1,243,271
  4. Step 4: Simplify right side
    572,428x = 1,545,722,779,441
  5. Step 5: Solve for x
    x = 1,545,722,779,441/572,428
  6. Step 6: Final answer
    x = 2,700,292.05

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.