Home / 1,286,136.22-1,774,740.10-742,447.17

Finding the Fourth Proportional to 1,286,136.22, 1,774,740.10 and 742,447.17

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Solution

The fourth proportional to 1,286,136.22, 1,774,740.10 and 742,447.17 is: 1,024,503.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,286,136.22 : 1,774,740.10 = 742,447.17 : x
  2. Step 2: Convert to fraction form
    1,286,136.22/1,774,740.10 = 742,447.17/x
  3. Step 3: Cross multiply
    1,286,136.22x = 1,774,740.10 × 742,447.17
  4. Step 4: Simplify right side
    1,286,136.22x = 1,317,650,764,730.52
  5. Step 5: Solve for x
    x = 1,317,650,764,730.52/1,286,136.22
  6. Step 6: Final answer
    x = 1,024,503.27

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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.