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Finding the Fourth Proportional to 610,936.96, 916,762.72 and 255,920.96

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Solution

The fourth proportional to 610,936.96, 916,762.72 and 255,920.96 is: 384,031.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    610,936.96 : 916,762.72 = 255,920.96 : x
  2. Step 2: Convert to fraction form
    610,936.96/916,762.72 = 255,920.96/x
  3. Step 3: Cross multiply
    610,936.96x = 916,762.72 × 255,920.96
  4. Step 4: Simplify right side
    610,936.96x = 234,618,795,394.61
  5. Step 5: Solve for x
    x = 234,618,795,394.61/610,936.96
  6. Step 6: Final answer
    x = 384,031.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.