Home / 1,262,538.20-1,742,302.70-689,579.72

Finding the Fourth Proportional to 1,262,538.20, 1,742,302.70 and 689,579.72

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Solution

The fourth proportional to 1,262,538.20, 1,742,302.70 and 689,579.72 is: 951,620.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,538.20 : 1,742,302.70 = 689,579.72 : x
  2. Step 2: Convert to fraction form
    1,262,538.20/1,742,302.70 = 689,579.72/x
  3. Step 3: Cross multiply
    1,262,538.20x = 1,742,302.70 × 689,579.72
  4. Step 4: Simplify right side
    1,262,538.20x = 1,201,456,608,021.24
  5. Step 5: Solve for x
    x = 1,201,456,608,021.24/1,262,538.20
  6. Step 6: Final answer
    x = 951,620.00

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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.