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Finding the Fourth Proportional to 770,093.76, 1,152,888.72 and 449,264.64

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Solution

The fourth proportional to 770,093.76, 1,152,888.72 and 449,264.64 is: 672,583.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,093.76 : 1,152,888.72 = 449,264.64 : x
  2. Step 2: Convert to fraction form
    770,093.76/1,152,888.72 = 449,264.64/x
  3. Step 3: Cross multiply
    770,093.76x = 1,152,888.72 × 449,264.64
  4. Step 4: Simplify right side
    770,093.76x = 517,952,135,750.86
  5. Step 5: Solve for x
    x = 517,952,135,750.86/770,093.76
  6. Step 6: Final answer
    x = 672,583.21

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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.