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Finding the Third Proportional to 720,432 and 1,130,098.50

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Solution

The third proportional to 720,432 and 1,130,098.50 is: 1,772,717.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    720,432 : 1,130,098.50 = 1,130,098.50 : x
  2. Step 2: Convert to fraction form
    720,432/1,130,098.50 = 1,130,098.50/x
  3. Step 3: Cross multiply
    720,432x = 1,130,098.50 × 1,130,098.50
  4. Step 4: Simplify right side
    720,432x = 1,277,122,619,702.25
  5. Step 5: Solve for x
    x = 1,277,122,619,702.25/720,432
  6. Step 6: Final answer
    x = 1,772,717.79

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Why These Related Problems?

These problems maintain the same ratio (1.57) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.