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Finding the Fourth Proportional to 613,698.32, 920,599.73 and 187,329.92

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Solution

The fourth proportional to 613,698.32, 920,599.73 and 187,329.92 is: 281,010.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,698.32 : 920,599.73 = 187,329.92 : x
  2. Step 2: Convert to fraction form
    613,698.32/920,599.73 = 187,329.92/x
  3. Step 3: Cross multiply
    613,698.32x = 920,599.73 × 187,329.92
  4. Step 4: Simplify right side
    613,698.32x = 172,455,868,935.76
  5. Step 5: Solve for x
    x = 172,455,868,935.76/613,698.32
  6. Step 6: Final answer
    x = 281,010.82

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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.