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Finding the Fourth Proportional to 552,783.74, 762,832.62 and 311,066.17

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Solution

The fourth proportional to 552,783.74, 762,832.62 and 311,066.17 is: 429,266.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    552,783.74 : 762,832.62 = 311,066.17 : x
  2. Step 2: Convert to fraction form
    552,783.74/762,832.62 = 311,066.17/x
  3. Step 3: Cross multiply
    552,783.74x = 762,832.62 × 311,066.17
  4. Step 4: Simplify right side
    552,783.74x = 237,291,419,547.38
  5. Step 5: Solve for x
    x = 237,291,419,547.38/552,783.74
  6. Step 6: Final answer
    x = 429,266.28

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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.