Home / 1,886,192.32-2,827,701.42-820,431.64

Finding the Fourth Proportional to 1,886,192.32, 2,827,701.42 and 820,431.64

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Solution

The fourth proportional to 1,886,192.32, 2,827,701.42 and 820,431.64 is: 1,229,957.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,886,192.32 : 2,827,701.42 = 820,431.64 : x
  2. Step 2: Convert to fraction form
    1,886,192.32/2,827,701.42 = 820,431.64/x
  3. Step 3: Cross multiply
    1,886,192.32x = 2,827,701.42 × 820,431.64
  4. Step 4: Simplify right side
    1,886,192.32x = 2,319,935,713,440.93
  5. Step 5: Solve for x
    x = 2,319,935,713,440.93/1,886,192.32
  6. Step 6: Final answer
    x = 1,229,957.14

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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.