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Finding the Fourth Proportional to 417,470.84, 576,519.02 and 288,739.16

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Solution

The fourth proportional to 417,470.84, 576,519.02 and 288,739.16 is: 398,743.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    417,470.84 : 576,519.02 = 288,739.16 : x
  2. Step 2: Convert to fraction form
    417,470.84/576,519.02 = 288,739.16/x
  3. Step 3: Cross multiply
    417,470.84x = 576,519.02 × 288,739.16
  4. Step 4: Simplify right side
    417,470.84x = 166,463,617,558.82
  5. Step 5: Solve for x
    x = 166,463,617,558.82/417,470.84
  6. Step 6: Final answer
    x = 398,743.10

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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.