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Finding the Fourth Proportional to 484,350.72, 668,393.52 and 280,410.24

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Solution

The fourth proportional to 484,350.72, 668,393.52 and 280,410.24 is: 386,960.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,350.72 : 668,393.52 = 280,410.24 : x
  2. Step 2: Convert to fraction form
    484,350.72/668,393.52 = 280,410.24/x
  3. Step 3: Cross multiply
    484,350.72x = 668,393.52 × 280,410.24
  4. Step 4: Simplify right side
    484,350.72x = 187,424,387,357.65
  5. Step 5: Solve for x
    x = 187,424,387,357.65/484,350.72
  6. Step 6: Final answer
    x = 386,960.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.