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Finding the Fourth Proportional to 484,803.60, 669,056.52 and 291,270.48

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Solution

The fourth proportional to 484,803.60, 669,056.52 and 291,270.48 is: 401,969.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    484,803.60 : 669,056.52 = 291,270.48 : x
  2. Step 2: Convert to fraction form
    484,803.60/669,056.52 = 291,270.48/x
  3. Step 3: Cross multiply
    484,803.60x = 669,056.52 × 291,270.48
  4. Step 4: Simplify right side
    484,803.60x = 194,876,413,727.53
  5. Step 5: Solve for x
    x = 194,876,413,727.53/484,803.60
  6. Step 6: Final answer
    x = 401,969.82

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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.