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Finding the Fourth Proportional to 771,786.13, 1,157,061 and 366,775.09

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Solution

The fourth proportional to 771,786.13, 1,157,061 and 366,775.09 is: 549,868.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    771,786.13 : 1,157,061 = 366,775.09 : x
  2. Step 2: Convert to fraction form
    771,786.13/1,157,061 = 366,775.09/x
  3. Step 3: Cross multiply
    771,786.13x = 1,157,061 × 366,775.09
  4. Step 4: Simplify right side
    771,786.13x = 424,381,152,410.49
  5. Step 5: Solve for x
    x = 424,381,152,410.49/771,786.13
  6. Step 6: Final answer
    x = 549,868.85

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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.