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Finding the Fourth Proportional to 691,650.50, 954,477.70 and 373,698.50

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Solution

The fourth proportional to 691,650.50, 954,477.70 and 373,698.50 is: 515,703.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    691,650.50 : 954,477.70 = 373,698.50 : x
  2. Step 2: Convert to fraction form
    691,650.50/954,477.70 = 373,698.50/x
  3. Step 3: Cross multiply
    691,650.50x = 954,477.70 × 373,698.50
  4. Step 4: Simplify right side
    691,650.50x = 356,686,884,773.45
  5. Step 5: Solve for x
    x = 356,686,884,773.45/691,650.50
  6. Step 6: Final answer
    x = 515,703.94

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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.