Home / 1,262,340.30-1,742,043.48-689,397.34

Finding the Fourth Proportional to 1,262,340.30, 1,742,043.48 and 689,397.34

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Solution

The fourth proportional to 1,262,340.30, 1,742,043.48 and 689,397.34 is: 951,375.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,340.30 : 1,742,043.48 = 689,397.34 : x
  2. Step 2: Convert to fraction form
    1,262,340.30/1,742,043.48 = 689,397.34/x
  3. Step 3: Cross multiply
    1,262,340.30x = 1,742,043.48 × 689,397.34
  4. Step 4: Simplify right side
    1,262,340.30x = 1,200,960,141,276.34
  5. Step 5: Solve for x
    x = 1,200,960,141,276.34/1,262,340.30
  6. Step 6: Final answer
    x = 951,375.90

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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.