Home / 831,808.30-1,247,712.45-824,809.90

Finding the Fourth Proportional to 831,808.30, 1,247,712.45 and 824,809.90

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Solution

The fourth proportional to 831,808.30, 1,247,712.45 and 824,809.90 is: 1,237,214.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    831,808.30 : 1,247,712.45 = 824,809.90 : x
  2. Step 2: Convert to fraction form
    831,808.30/1,247,712.45 = 824,809.90/x
  3. Step 3: Cross multiply
    831,808.30x = 1,247,712.45 × 824,809.90
  4. Step 4: Simplify right side
    831,808.30x = 1,029,125,581,113.26
  5. Step 5: Solve for x
    x = 1,029,125,581,113.26/831,808.30
  6. Step 6: Final answer
    x = 1,237,214.85

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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.