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Finding the Fourth Proportional to 660,577.61, 990,866.42 and 187,267.07

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Solution

The fourth proportional to 660,577.61, 990,866.42 and 187,267.07 is: 280,900.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,577.61 : 990,866.42 = 187,267.07 : x
  2. Step 2: Convert to fraction form
    660,577.61/990,866.42 = 187,267.07/x
  3. Step 3: Cross multiply
    660,577.61x = 990,866.42 × 187,267.07
  4. Step 4: Simplify right side
    660,577.61x = 185,556,653,477.87
  5. Step 5: Solve for x
    x = 185,556,653,477.87/660,577.61
  6. Step 6: Final answer
    x = 280,900.61

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Similar ratio
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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.