Home / 1,678,721.76-2,316,638.98-914,775.32

Finding the Fourth Proportional to 1,678,721.76, 2,316,638.98 and 914,775.32

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Solution

The fourth proportional to 1,678,721.76, 2,316,638.98 and 914,775.32 is: 1,262,391.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,678,721.76 : 2,316,638.98 = 914,775.32 : x
  2. Step 2: Convert to fraction form
    1,678,721.76/2,316,638.98 = 914,775.32/x
  3. Step 3: Cross multiply
    1,678,721.76x = 2,316,638.98 × 914,775.32
  4. Step 4: Simplify right side
    1,678,721.76x = 2,119,204,171,189.04
  5. Step 5: Solve for x
    x = 2,119,204,171,189.04/1,678,721.76
  6. Step 6: Final answer
    x = 1,262,391.55

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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.