Home / 1,262,346.21-1,742,044.19-689,386.37

Finding the Fourth Proportional to 1,262,346.21, 1,742,044.19 and 689,386.37

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Solution

The fourth proportional to 1,262,346.21, 1,742,044.19 and 689,386.37 is: 951,356.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,346.21 : 1,742,044.19 = 689,386.37 : x
  2. Step 2: Convert to fraction form
    1,262,346.21/1,742,044.19 = 689,386.37/x
  3. Step 3: Cross multiply
    1,262,346.21x = 1,742,044.19 × 689,386.37
  4. Step 4: Simplify right side
    1,262,346.21x = 1,200,941,508,366.54
  5. Step 5: Solve for x
    x = 1,200,941,508,366.54/1,262,346.21
  6. Step 6: Final answer
    x = 951,356.69

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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.