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Finding the Fourth Proportional to 871,855.17, 1,307,807.30 and 240,768.98

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Solution

The fourth proportional to 871,855.17, 1,307,807.30 and 240,768.98 is: 361,160.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    871,855.17 : 1,307,807.30 = 240,768.98 : x
  2. Step 2: Convert to fraction form
    871,855.17/1,307,807.30 = 240,768.98/x
  3. Step 3: Cross multiply
    871,855.17x = 1,307,807.30 × 240,768.98
  4. Step 4: Simplify right side
    871,855.17x = 314,879,431,723.23
  5. Step 5: Solve for x
    x = 314,879,431,723.23/871,855.17
  6. Step 6: Final answer
    x = 361,160.25

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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.