Home / 1,870,646.73-2,581,299.86-1,380,876.81

Finding the Fourth Proportional to 1,870,646.73, 2,581,299.86 and 1,380,876.81

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Solution

The fourth proportional to 1,870,646.73, 2,581,299.86 and 1,380,876.81 is: 1,905,467.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,870,646.73 : 2,581,299.86 = 1,380,876.81 : x
  2. Step 2: Convert to fraction form
    1,870,646.73/2,581,299.86 = 1,380,876.81/x
  3. Step 3: Cross multiply
    1,870,646.73x = 2,581,299.86 × 1,380,876.81
  4. Step 4: Simplify right side
    1,870,646.73x = 3,564,457,109,425.86
  5. Step 5: Solve for x
    x = 3,564,457,109,425.86/1,870,646.73
  6. Step 6: Final answer
    x = 1,905,467.80

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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.