Home / 1,262,337.80-1,742,040.04-689,394.84

Finding the Fourth Proportional to 1,262,337.80, 1,742,040.04 and 689,394.84

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Solution

The fourth proportional to 1,262,337.80, 1,742,040.04 and 689,394.84 is: 951,372.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,337.80 : 1,742,040.04 = 689,394.84 : x
  2. Step 2: Convert to fraction form
    1,262,337.80/1,742,040.04 = 689,394.84/x
  3. Step 3: Cross multiply
    1,262,337.80x = 1,742,040.04 × 689,394.84
  4. Step 4: Simplify right side
    1,262,337.80x = 1,200,953,414,649.39
  5. Step 5: Solve for x
    x = 1,200,953,414,649.39/1,262,337.80
  6. Step 6: Final answer
    x = 951,372.46

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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.