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Finding the Third Proportional to 690,374 and 1,506,258

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Solution

The third proportional to 690,374 and 1,506,258 is: 3,286,353.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    690,374 : 1,506,258 = 1,506,258 : x
  2. Step 2: Convert to fraction form
    690,374/1,506,258 = 1,506,258/x
  3. Step 3: Cross multiply
    690,374x = 1,506,258 × 1,506,258
  4. Step 4: Simplify right side
    690,374x = 2,268,813,162,564
  5. Step 5: Solve for x
    x = 2,268,813,162,564/690,374
  6. Step 6: Final answer
    x = 3,286,353.72

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.