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Finding the Fourth Proportional to 520,754.67, 779,870.63 and 360,381.22

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Solution

The fourth proportional to 520,754.67, 779,870.63 and 360,381.22 is: 539,698.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,754.67 : 779,870.63 = 360,381.22 : x
  2. Step 2: Convert to fraction form
    520,754.67/779,870.63 = 360,381.22/x
  3. Step 3: Cross multiply
    520,754.67x = 779,870.63 × 360,381.22
  4. Step 4: Simplify right side
    520,754.67x = 281,050,728,032.85
  5. Step 5: Solve for x
    x = 281,050,728,032.85/520,754.67
  6. Step 6: Final answer
    x = 539,698.91

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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.