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Finding the Fourth Proportional to 559,927.30, 772,418.82 and 355,645.04

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Solution

The fourth proportional to 559,927.30, 772,418.82 and 355,645.04 is: 490,611.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    559,927.30 : 772,418.82 = 355,645.04 : x
  2. Step 2: Convert to fraction form
    559,927.30/772,418.82 = 355,645.04/x
  3. Step 3: Cross multiply
    559,927.30x = 772,418.82 × 355,645.04
  4. Step 4: Simplify right side
    559,927.30x = 274,706,922,135.65
  5. Step 5: Solve for x
    x = 274,706,922,135.65/559,927.30
  6. Step 6: Final answer
    x = 490,611.77

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.