Home / 651,923.80-978,177.30-314,834.20

Finding the Fourth Proportional to 651,923.80, 978,177.30 and 314,834.20

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Solution

The fourth proportional to 651,923.80, 978,177.30 and 314,834.20 is: 472,392.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    651,923.80 : 978,177.30 = 314,834.20 : x
  2. Step 2: Convert to fraction form
    651,923.80/978,177.30 = 314,834.20/x
  3. Step 3: Cross multiply
    651,923.80x = 978,177.30 × 314,834.20
  4. Step 4: Simplify right side
    651,923.80x = 307,963,667,703.66
  5. Step 5: Solve for x
    x = 307,963,667,703.66/651,923.80
  6. Step 6: Final answer
    x = 472,392.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.