Home / 1,071,803.28-1,606,203.80-805,393.92

Finding the Fourth Proportional to 1,071,803.28, 1,606,203.80 and 805,393.92

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Solution

The fourth proportional to 1,071,803.28, 1,606,203.80 and 805,393.92 is: 1,206,962.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,071,803.28 : 1,606,203.80 = 805,393.92 : x
  2. Step 2: Convert to fraction form
    1,071,803.28/1,606,203.80 = 805,393.92/x
  3. Step 3: Cross multiply
    1,071,803.28x = 1,606,203.80 × 805,393.92
  4. Step 4: Simplify right side
    1,071,803.28x = 1,293,626,774,800.90
  5. Step 5: Solve for x
    x = 1,293,626,774,800.90/1,071,803.28
  6. Step 6: Final answer
    x = 1,206,962.88

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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.