Home / 819,807.54-1,221,561.30-730,373.82

Finding the Fourth Proportional to 819,807.54, 1,221,561.30 and 730,373.82

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Solution

The fourth proportional to 819,807.54, 1,221,561.30 and 730,373.82 is: 1,088,299.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    819,807.54 : 1,221,561.30 = 730,373.82 : x
  2. Step 2: Convert to fraction form
    819,807.54/1,221,561.30 = 730,373.82/x
  3. Step 3: Cross multiply
    819,807.54x = 1,221,561.30 × 730,373.82
  4. Step 4: Simplify right side
    819,807.54x = 892,196,393,045.17
  5. Step 5: Solve for x
    x = 892,196,393,045.17/819,807.54
  6. Step 6: Final answer
    x = 1,088,299.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.