Home / 831,740.60-1,247,610.90-808,412.60

Finding the Fourth Proportional to 831,740.60, 1,247,610.90 and 808,412.60

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Solution

The fourth proportional to 831,740.60, 1,247,610.90 and 808,412.60 is: 1,212,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,740.60 : 1,247,610.90 = 808,412.60 : x
  2. Step 2: Convert to fraction form
    831,740.60/1,247,610.90 = 808,412.60/x
  3. Step 3: Cross multiply
    831,740.60x = 1,247,610.90 × 808,412.60
  4. Step 4: Simplify right side
    831,740.60x = 1,008,584,371,457.34
  5. Step 5: Solve for x
    x = 1,008,584,371,457.34/831,740.60
  6. Step 6: Final answer
    x = 1,212,618.90

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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.