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Finding the Third Proportional to 315,030.52 and 495,509.27

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Solution

The third proportional to 315,030.52 and 495,509.27 is: 779,383.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,030.52 : 495,509.27 = 495,509.27 : x
  2. Step 2: Convert to fraction form
    315,030.52/495,509.27 = 495,509.27/x
  3. Step 3: Cross multiply
    315,030.52x = 495,509.27 × 495,509.27
  4. Step 4: Simplify right side
    315,030.52x = 245,529,440,062.56
  5. Step 5: Solve for x
    x = 245,529,440,062.56/315,030.52
  6. Step 6: Final answer
    x = 779,383.04

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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.