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Finding the Fourth Proportional to 477,678.44, 716,405.66 and 211,293.80

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Solution

The fourth proportional to 477,678.44, 716,405.66 and 211,293.80 is: 316,891.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    477,678.44 : 716,405.66 = 211,293.80 : x
  2. Step 2: Convert to fraction form
    477,678.44/716,405.66 = 211,293.80/x
  3. Step 3: Cross multiply
    477,678.44x = 716,405.66 × 211,293.80
  4. Step 4: Simplify right side
    477,678.44x = 151,372,074,242.91
  5. Step 5: Solve for x
    x = 151,372,074,242.91/477,678.44
  6. Step 6: Final answer
    x = 316,891.16

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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.