Home / 1,262,340.96-1,742,036.94-689,381.12

Finding the Fourth Proportional to 1,262,340.96, 1,742,036.94 and 689,381.12

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Solution

The fourth proportional to 1,262,340.96, 1,742,036.94 and 689,381.12 is: 951,349.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,262,340.96 : 1,742,036.94 = 689,381.12 : x
  2. Step 2: Convert to fraction form
    1,262,340.96/1,742,036.94 = 689,381.12/x
  3. Step 3: Cross multiply
    1,262,340.96x = 1,742,036.94 × 689,381.12
  4. Step 4: Simplify right side
    1,262,340.96x = 1,200,927,368,068.39
  5. Step 5: Solve for x
    x = 1,200,927,368,068.39/1,262,340.96
  6. Step 6: Final answer
    x = 951,349.44

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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.