Home / 1,262,749.29-1,742,632.20-689,826.39

Finding the Fourth Proportional to 1,262,749.29, 1,742,632.20 and 689,826.39

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Solution

The fourth proportional to 1,262,749.29, 1,742,632.20 and 689,826.39 is: 951,981.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,749.29 : 1,742,632.20 = 689,826.39 : x
  2. Step 2: Convert to fraction form
    1,262,749.29/1,742,632.20 = 689,826.39/x
  3. Step 3: Cross multiply
    1,262,749.29x = 1,742,632.20 × 689,826.39
  4. Step 4: Simplify right side
    1,262,749.29x = 1,202,113,679,623.76
  5. Step 5: Solve for x
    x = 1,202,113,679,623.76/1,262,749.29
  6. Step 6: Final answer
    x = 951,981.28

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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.