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Finding the Fourth Proportional to 509,313.04, 702,851.84 and 279,885.12

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Solution

The fourth proportional to 509,313.04, 702,851.84 and 279,885.12 is: 386,241.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    509,313.04 : 702,851.84 = 279,885.12 : x
  2. Step 2: Convert to fraction form
    509,313.04/702,851.84 = 279,885.12/x
  3. Step 3: Cross multiply
    509,313.04x = 702,851.84 × 279,885.12
  4. Step 4: Simplify right side
    509,313.04x = 196,717,771,580.62
  5. Step 5: Solve for x
    x = 196,717,771,580.62/509,313.04
  6. Step 6: Final answer
    x = 386,241.38

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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.