Home / 1,203,955.66-1,660,886.40-720,423.46

Finding the Fourth Proportional to 1,203,955.66, 1,660,886.40 and 720,423.46

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Solution

The fourth proportional to 1,203,955.66, 1,660,886.40 and 720,423.46 is: 993,841.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,203,955.66 : 1,660,886.40 = 720,423.46 : x
  2. Step 2: Convert to fraction form
    1,203,955.66/1,660,886.40 = 720,423.46/x
  3. Step 3: Cross multiply
    1,203,955.66x = 1,660,886.40 × 720,423.46
  4. Step 4: Simplify right side
    1,203,955.66x = 1,196,541,526,954.94
  5. Step 5: Solve for x
    x = 1,196,541,526,954.94/1,203,955.66
  6. Step 6: Final answer
    x = 993,841.86

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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.