Home / 1,226,030.64-1,691,906.04-689,486.64

Finding the Fourth Proportional to 1,226,030.64, 1,691,906.04 and 689,486.64

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Solution

The fourth proportional to 1,226,030.64, 1,691,906.04 and 689,486.64 is: 951,482.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,226,030.64 : 1,691,906.04 = 689,486.64 : x
  2. Step 2: Convert to fraction form
    1,226,030.64/1,691,906.04 = 689,486.64/x
  3. Step 3: Cross multiply
    1,226,030.64x = 1,691,906.04 × 689,486.64
  4. Step 4: Simplify right side
    1,226,030.64x = 1,166,546,610,715.31
  5. Step 5: Solve for x
    x = 1,166,546,610,715.31/1,226,030.64
  6. Step 6: Final answer
    x = 951,482.43

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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.