Home / 1,262,348.43-1,742,054.68-689,405.46

Finding the Fourth Proportional to 1,262,348.43, 1,742,054.68 and 689,405.46

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Solution

The fourth proportional to 1,262,348.43, 1,742,054.68 and 689,405.46 is: 951,387.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,348.43 : 1,742,054.68 = 689,405.46 : x
  2. Step 2: Convert to fraction form
    1,262,348.43/1,742,054.68 = 689,405.46/x
  3. Step 3: Cross multiply
    1,262,348.43x = 1,742,054.68 × 689,405.46
  4. Step 4: Simplify right side
    1,262,348.43x = 1,200,982,008,010.55
  5. Step 5: Solve for x
    x = 1,200,982,008,010.55/1,262,348.43
  6. Step 6: Final answer
    x = 951,387.10

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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.