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Finding the Fourth Proportional to 660,222.59, 990,701.83 and 356,610.62

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Solution

The fourth proportional to 660,222.59, 990,701.83 and 356,610.62 is: 535,114.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,222.59 : 990,701.83 = 356,610.62 : x
  2. Step 2: Convert to fraction form
    660,222.59/990,701.83 = 356,610.62/x
  3. Step 3: Cross multiply
    660,222.59x = 990,701.83 × 356,610.62
  4. Step 4: Simplify right side
    660,222.59x = 353,294,788,877.93
  5. Step 5: Solve for x
    x = 353,294,788,877.93/660,222.59
  6. Step 6: Final answer
    x = 535,114.67

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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.