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Finding the Fourth Proportional to 660,594.30, 990,697.05 and 187,321.02

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Solution

The fourth proportional to 660,594.30, 990,697.05 and 187,321.02 is: 280,926.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,594.30 : 990,697.05 = 187,321.02 : x
  2. Step 2: Convert to fraction form
    660,594.30/990,697.05 = 187,321.02/x
  3. Step 3: Cross multiply
    660,594.30x = 990,697.05 × 187,321.02
  4. Step 4: Simplify right side
    660,594.30x = 185,578,381,916.99
  5. Step 5: Solve for x
    x = 185,578,381,916.99/660,594.30
  6. Step 6: Final answer
    x = 280,926.41

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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.