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Finding the Fourth Proportional to 666,124.35, 919,257.11 and 367,767.77

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Solution

The fourth proportional to 666,124.35, 919,257.11 and 367,767.77 is: 507,522.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    666,124.35 : 919,257.11 = 367,767.77 : x
  2. Step 2: Convert to fraction form
    666,124.35/919,257.11 = 367,767.77/x
  3. Step 3: Cross multiply
    666,124.35x = 919,257.11 × 367,767.77
  4. Step 4: Simplify right side
    666,124.35x = 338,073,140,970.39
  5. Step 5: Solve for x
    x = 338,073,140,970.39/666,124.35
  6. Step 6: Final answer
    x = 507,522.57

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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.