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Finding the Third Proportional to 315,240 and 484,528

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Solution

The third proportional to 315,240 and 484,528 is: 744,725.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,240 : 484,528 = 484,528 : x
  2. Step 2: Convert to fraction form
    315,240/484,528 = 484,528/x
  3. Step 3: Cross multiply
    315,240x = 484,528 × 484,528
  4. Step 4: Simplify right side
    315,240x = 234,767,382,784
  5. Step 5: Solve for x
    x = 234,767,382,784/315,240
  6. Step 6: Final answer
    x = 744,725.87

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.