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Finding the Fourth Proportional to 1,357,766.73, 1,873,510.02 and 784,696.32

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Solution

The fourth proportional to 1,357,766.73, 1,873,510.02 and 784,696.32 is: 1,082,760.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,357,766.73 : 1,873,510.02 = 784,696.32 : x
  2. Step 2: Convert to fraction form
    1,357,766.73/1,873,510.02 = 784,696.32/x
  3. Step 3: Cross multiply
    1,357,766.73x = 1,873,510.02 × 784,696.32
  4. Step 4: Simplify right side
    1,357,766.73x = 1,470,136,418,177.13
  5. Step 5: Solve for x
    x = 1,470,136,418,177.13/1,357,766.73
  6. Step 6: Final answer
    x = 1,082,760.67

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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.