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Finding the Fourth Proportional to 613,615.28, 846,892.33 and 395,762.72

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Solution

The fourth proportional to 613,615.28, 846,892.33 and 395,762.72 is: 546,219.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,615.28 : 846,892.33 = 395,762.72 : x
  2. Step 2: Convert to fraction form
    613,615.28/846,892.33 = 395,762.72/x
  3. Step 3: Cross multiply
    613,615.28x = 846,892.33 × 395,762.72
  4. Step 4: Simplify right side
    613,615.28x = 335,168,406,844.07
  5. Step 5: Solve for x
    x = 335,168,406,844.07/613,615.28
  6. Step 6: Final answer
    x = 546,219.14

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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.