Home / 1,678,903.49-2,316,819.21-914,940.65

Finding the Fourth Proportional to 1,678,903.49, 2,316,819.21 and 914,940.65

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Solution

The fourth proportional to 1,678,903.49, 2,316,819.21 and 914,940.65 is: 1,262,581.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,903.49 : 2,316,819.21 = 914,940.65 : x
  2. Step 2: Convert to fraction form
    1,678,903.49/2,316,819.21 = 914,940.65/x
  3. Step 3: Cross multiply
    1,678,903.49x = 2,316,819.21 × 914,940.65
  4. Step 4: Simplify right side
    1,678,903.49x = 2,119,752,062,345.79
  5. Step 5: Solve for x
    x = 2,119,752,062,345.79/1,678,903.49
  6. Step 6: Final answer
    x = 1,262,581.25

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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.