Home / 873,141.06-1,309,711.89-392,807.82

Finding the Fourth Proportional to 873,141.06, 1,309,711.89 and 392,807.82

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Solution

The fourth proportional to 873,141.06, 1,309,711.89 and 392,807.82 is: 589,211.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,141.06 : 1,309,711.89 = 392,807.82 : x
  2. Step 2: Convert to fraction form
    873,141.06/1,309,711.89 = 392,807.82/x
  3. Step 3: Cross multiply
    873,141.06x = 1,309,711.89 × 392,807.82
  4. Step 4: Simplify right side
    873,141.06x = 514,465,072,338.98
  5. Step 5: Solve for x
    x = 514,465,072,338.98/873,141.06
  6. Step 6: Final answer
    x = 589,211.86

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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.