Home / 1,395,909.38-1,925,864.40-912,757.34

Finding the Fourth Proportional to 1,395,909.38, 1,925,864.40 and 912,757.34

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Solution

The fourth proportional to 1,395,909.38, 1,925,864.40 and 912,757.34 is: 1,259,284.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,395,909.38 : 1,925,864.40 = 912,757.34 : x
  2. Step 2: Convert to fraction form
    1,395,909.38/1,925,864.40 = 912,757.34/x
  3. Step 3: Cross multiply
    1,395,909.38x = 1,925,864.40 × 912,757.34
  4. Step 4: Simplify right side
    1,395,909.38x = 1,757,846,875,182.20
  5. Step 5: Solve for x
    x = 1,757,846,875,182.20/1,395,909.38
  6. Step 6: Final answer
    x = 1,259,284.38

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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.