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Finding the Fourth Proportional to 653,775.40, 980,672.94 and 248,989.98

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Solution

The fourth proportional to 653,775.40, 980,672.94 and 248,989.98 is: 373,488.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    653,775.40 : 980,672.94 = 248,989.98 : x
  2. Step 2: Convert to fraction form
    653,775.40/980,672.94 = 248,989.98/x
  3. Step 3: Cross multiply
    653,775.40x = 980,672.94 × 248,989.98
  4. Step 4: Simplify right side
    653,775.40x = 244,177,739,394.67
  5. Step 5: Solve for x
    x = 244,177,739,394.67/653,775.40
  6. Step 6: Final answer
    x = 373,488.72

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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.