Home / 1,397,982.77-2,096,979.62-425,356.74

Finding the Fourth Proportional to 1,397,982.77, 2,096,979.62 and 425,356.74

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Solution

The fourth proportional to 1,397,982.77, 2,096,979.62 and 425,356.74 is: 638,036.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,397,982.77 : 2,096,979.62 = 425,356.74 : x
  2. Step 2: Convert to fraction form
    1,397,982.77/2,096,979.62 = 425,356.74/x
  3. Step 3: Cross multiply
    1,397,982.77x = 2,096,979.62 × 425,356.74
  4. Step 4: Simplify right side
    1,397,982.77x = 891,964,415,009.64
  5. Step 5: Solve for x
    x = 891,964,415,009.64/1,397,982.77
  6. Step 6: Final answer
    x = 638,036.77

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.