Home / 1,688,109.91-2,329,591.38-913,740.59

Finding the Fourth Proportional to 1,688,109.91, 2,329,591.38 and 913,740.59

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Solution

The fourth proportional to 1,688,109.91, 2,329,591.38 and 913,740.59 is: 1,260,961.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,688,109.91 : 2,329,591.38 = 913,740.59 : x
  2. Step 2: Convert to fraction form
    1,688,109.91/2,329,591.38 = 913,740.59/x
  3. Step 3: Cross multiply
    1,688,109.91x = 2,329,591.38 × 913,740.59
  4. Step 4: Simplify right side
    1,688,109.91x = 2,128,642,202,020.11
  5. Step 5: Solve for x
    x = 2,128,642,202,020.11/1,688,109.91
  6. Step 6: Final answer
    x = 1,260,961.86

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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.