Home / 1,251,471.57-1,727,064.79-707,688.72

Finding the Fourth Proportional to 1,251,471.57, 1,727,064.79 and 707,688.72

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Solution

The fourth proportional to 1,251,471.57, 1,727,064.79 and 707,688.72 is: 976,629.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,251,471.57 : 1,727,064.79 = 707,688.72 : x
  2. Step 2: Convert to fraction form
    1,251,471.57/1,727,064.79 = 707,688.72/x
  3. Step 3: Cross multiply
    1,251,471.57x = 1,727,064.79 × 707,688.72
  4. Step 4: Simplify right side
    1,251,471.57x = 1,222,224,270,592.17
  5. Step 5: Solve for x
    x = 1,222,224,270,592.17/1,251,471.57
  6. Step 6: Final answer
    x = 976,629.67

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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.