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Finding the Fourth Proportional to 707,813.56, 976,749.06 and 385,522.12

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Solution

The fourth proportional to 707,813.56, 976,749.06 and 385,522.12 is: 532,002.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    707,813.56 : 976,749.06 = 385,522.12 : x
  2. Step 2: Convert to fraction form
    707,813.56/976,749.06 = 385,522.12/x
  3. Step 3: Cross multiply
    707,813.56x = 976,749.06 × 385,522.12
  4. Step 4: Simplify right side
    707,813.56x = 376,558,368,319.21
  5. Step 5: Solve for x
    x = 376,558,368,319.21/707,813.56
  6. Step 6: Final answer
    x = 532,002.20

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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.