Home / 1,398,199.32-2,097,345.42-387,331.47

Finding the Fourth Proportional to 1,398,199.32, 2,097,345.42 and 387,331.47

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Solution

The fourth proportional to 1,398,199.32, 2,097,345.42 and 387,331.47 is: 581,010.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,398,199.32 : 2,097,345.42 = 387,331.47 : x
  2. Step 2: Convert to fraction form
    1,398,199.32/2,097,345.42 = 387,331.47/x
  3. Step 3: Cross multiply
    1,398,199.32x = 2,097,345.42 × 387,331.47
  4. Step 4: Simplify right side
    1,398,199.32x = 812,367,884,626.37
  5. Step 5: Solve for x
    x = 812,367,884,626.37/1,398,199.32
  6. Step 6: Final answer
    x = 581,010.07

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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.