Home / 1,615,978.32-2,234,081.16-1,212,870.48

Finding the Fourth Proportional to 1,615,978.32, 2,234,081.16 and 1,212,870.48

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Solution

The fourth proportional to 1,615,978.32, 2,234,081.16 and 1,212,870.48 is: 1,676,786.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,615,978.32 : 2,234,081.16 = 1,212,870.48 : x
  2. Step 2: Convert to fraction form
    1,615,978.32/2,234,081.16 = 1,212,870.48/x
  3. Step 3: Cross multiply
    1,615,978.32x = 2,234,081.16 × 1,212,870.48
  4. Step 4: Simplify right side
    1,615,978.32x = 2,709,651,088,888.16
  5. Step 5: Solve for x
    x = 2,709,651,088,888.16/1,615,978.32
  6. Step 6: Final answer
    x = 1,676,786.78

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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.