Home / 1,776,431.20-2,664,646.80-831,647.20

Finding the Fourth Proportional to 1,776,431.20, 2,664,646.80 and 831,647.20

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Solution

The fourth proportional to 1,776,431.20, 2,664,646.80 and 831,647.20 is: 1,247,470.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,776,431.20 : 2,664,646.80 = 831,647.20 : x
  2. Step 2: Convert to fraction form
    1,776,431.20/2,664,646.80 = 831,647.20/x
  3. Step 3: Cross multiply
    1,776,431.20x = 2,664,646.80 × 831,647.20
  4. Step 4: Simplify right side
    1,776,431.20x = 2,216,046,050,208.96
  5. Step 5: Solve for x
    x = 2,216,046,050,208.96/1,776,431.20
  6. Step 6: Final answer
    x = 1,247,470.80

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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.