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Finding the Fourth Proportional to 400,114.79, 552,697.58 and 320,114.33

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Solution

The fourth proportional to 400,114.79, 552,697.58 and 320,114.33 is: 442,189.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,114.79 : 552,697.58 = 320,114.33 : x
  2. Step 2: Convert to fraction form
    400,114.79/552,697.58 = 320,114.33/x
  3. Step 3: Cross multiply
    400,114.79x = 552,697.58 × 320,114.33
  4. Step 4: Simplify right side
    400,114.79x = 176,926,413,823.09
  5. Step 5: Solve for x
    x = 176,926,413,823.09/400,114.79
  6. Step 6: Final answer
    x = 442,189.14

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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.