Home / 1,226,027.64-1,691,901.90-689,483.64

Finding the Fourth Proportional to 1,226,027.64, 1,691,901.90 and 689,483.64

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Solution

The fourth proportional to 1,226,027.64, 1,691,901.90 and 689,483.64 is: 951,478.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,027.64 : 1,691,901.90 = 689,483.64 : x
  2. Step 2: Convert to fraction form
    1,226,027.64/1,691,901.90 = 689,483.64/x
  3. Step 3: Cross multiply
    1,226,027.64x = 1,691,901.90 × 689,483.64
  4. Step 4: Simplify right side
    1,226,027.64x = 1,166,538,680,534.92
  5. Step 5: Solve for x
    x = 1,166,538,680,534.92/1,226,027.64
  6. Step 6: Final answer
    x = 951,478.29

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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.