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Finding the Fourth Proportional to 474,520.84, 654,836.98 and 256,728.81

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Solution

The fourth proportional to 474,520.84, 654,836.98 and 256,728.81 is: 354,284.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    474,520.84 : 654,836.98 = 256,728.81 : x
  2. Step 2: Convert to fraction form
    474,520.84/654,836.98 = 256,728.81/x
  3. Step 3: Cross multiply
    474,520.84x = 654,836.98 × 256,728.81
  4. Step 4: Simplify right side
    474,520.84x = 168,115,518,619.39
  5. Step 5: Solve for x
    x = 168,115,518,619.39/474,520.84
  6. Step 6: Final answer
    x = 354,284.80

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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.