Home / 1,121,971.50-1,548,432.72-669,262.50

Finding the Fourth Proportional to 1,121,971.50, 1,548,432.72 and 669,262.50

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Solution

The fourth proportional to 1,121,971.50, 1,548,432.72 and 669,262.50 is: 923,649.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,121,971.50 : 1,548,432.72 = 669,262.50 : x
  2. Step 2: Convert to fraction form
    1,121,971.50/1,548,432.72 = 669,262.50/x
  3. Step 3: Cross multiply
    1,121,971.50x = 1,548,432.72 × 669,262.50
  4. Step 4: Simplify right side
    1,121,971.50x = 1,036,307,953,269
  5. Step 5: Solve for x
    x = 1,036,307,953,269/1,121,971.50
  6. Step 6: Final answer
    x = 923,649.09

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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.