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Finding the Third Proportional to 688,732 and 1,510,376

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Solution

The third proportional to 688,732 and 1,510,376 is: 3,312,225.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    688,732 : 1,510,376 = 1,510,376 : x
  2. Step 2: Convert to fraction form
    688,732/1,510,376 = 1,510,376/x
  3. Step 3: Cross multiply
    688,732x = 1,510,376 × 1,510,376
  4. Step 4: Simplify right side
    688,732x = 2,281,235,661,376
  5. Step 5: Solve for x
    x = 2,281,235,661,376/688,732
  6. Step 6: Final answer
    x = 3,312,225.45

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.