Home / 1,286,122.29-1,774,720.88-742,433.24

Finding the Fourth Proportional to 1,286,122.29, 1,774,720.88 and 742,433.24

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Solution

The fourth proportional to 1,286,122.29, 1,774,720.88 and 742,433.24 is: 1,024,484.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,122.29 : 1,774,720.88 = 742,433.24 : x
  2. Step 2: Convert to fraction form
    1,286,122.29/1,774,720.88 = 742,433.24/x
  3. Step 3: Cross multiply
    1,286,122.29x = 1,774,720.88 × 742,433.24
  4. Step 4: Simplify right side
    1,286,122.29x = 1,317,611,764,160.45
  5. Step 5: Solve for x
    x = 1,317,611,764,160.45/1,286,122.29
  6. Step 6: Final answer
    x = 1,024,484.04

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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.