Home / 1,286,123.29-1,774,722.26-742,434.24

Finding the Fourth Proportional to 1,286,123.29, 1,774,722.26 and 742,434.24

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Solution

The fourth proportional to 1,286,123.29, 1,774,722.26 and 742,434.24 is: 1,024,485.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,123.29 : 1,774,722.26 = 742,434.24 : x
  2. Step 2: Convert to fraction form
    1,286,123.29/1,774,722.26 = 742,434.24/x
  3. Step 3: Cross multiply
    1,286,123.29x = 1,774,722.26 × 742,434.24
  4. Step 4: Simplify right side
    1,286,123.29x = 1,317,614,572,314.18
  5. Step 5: Solve for x
    x = 1,317,614,572,314.18/1,286,123.29
  6. Step 6: Final answer
    x = 1,024,485.43

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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.