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Finding the Fourth Proportional to 520,036.65, 729,625.95 and 520,036.65

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Solution

The fourth proportional to 520,036.65, 729,625.95 and 520,036.65 is: 729,625.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,036.65 : 729,625.95 = 520,036.65 : x
  2. Step 2: Convert to fraction form
    520,036.65/729,625.95 = 520,036.65/x
  3. Step 3: Cross multiply
    520,036.65x = 729,625.95 × 520,036.65
  4. Step 4: Simplify right side
    520,036.65x = 379,432,234,791.07
  5. Step 5: Solve for x
    x = 379,432,234,791.07/520,036.65
  6. Step 6: Final answer
    x = 729,625.95

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.