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Finding the Fourth Proportional to 647,207.04, 892,947.78 and 375,220.67

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Solution

The fourth proportional to 647,207.04, 892,947.78 and 375,220.67 is: 517,689.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    647,207.04 : 892,947.78 = 375,220.67 : x
  2. Step 2: Convert to fraction form
    647,207.04/892,947.78 = 375,220.67/x
  3. Step 3: Cross multiply
    647,207.04x = 892,947.78 × 375,220.67
  4. Step 4: Simplify right side
    647,207.04x = 335,052,459,821.87
  5. Step 5: Solve for x
    x = 335,052,459,821.87/647,207.04
  6. Step 6: Final answer
    x = 517,689.76

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.