Home / 808,212.60-1,212,318.90-742,602.60

Finding the Fourth Proportional to 808,212.60, 1,212,318.90 and 742,602.60

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Solution

The fourth proportional to 808,212.60, 1,212,318.90 and 742,602.60 is: 1,113,903.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    808,212.60 : 1,212,318.90 = 742,602.60 : x
  2. Step 2: Convert to fraction form
    808,212.60/1,212,318.90 = 742,602.60/x
  3. Step 3: Cross multiply
    808,212.60x = 1,212,318.90 × 742,602.60
  4. Step 4: Simplify right side
    808,212.60x = 900,271,167,169.14
  5. Step 5: Solve for x
    x = 900,271,167,169.14/808,212.60
  6. Step 6: Final answer
    x = 1,113,903.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.