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Finding the Fourth Proportional to 507,342.03, 699,958.17 and 289,394.12

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Solution

The fourth proportional to 507,342.03, 699,958.17 and 289,394.12 is: 399,264.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,342.03 : 699,958.17 = 289,394.12 : x
  2. Step 2: Convert to fraction form
    507,342.03/699,958.17 = 289,394.12/x
  3. Step 3: Cross multiply
    507,342.03x = 699,958.17 × 289,394.12
  4. Step 4: Simplify right side
    507,342.03x = 202,563,775,144.17
  5. Step 5: Solve for x
    x = 202,563,775,144.17/507,342.03
  6. Step 6: Final answer
    x = 399,264.72

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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.