Home / 2,660,465.70-3,989,714.40-863,407.80

Finding the Fourth Proportional to 2,660,465.70, 3,989,714.40 and 863,407.80

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Solution

The fourth proportional to 2,660,465.70, 3,989,714.40 and 863,407.80 is: 1,294,792.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,660,465.70 : 3,989,714.40 = 863,407.80 : x
  2. Step 2: Convert to fraction form
    2,660,465.70/3,989,714.40 = 863,407.80/x
  3. Step 3: Cross multiply
    2,660,465.70x = 3,989,714.40 × 863,407.80
  4. Step 4: Simplify right side
    2,660,465.70x = 3,444,750,532,732.32
  5. Step 5: Solve for x
    x = 3,444,750,532,732.32/2,660,465.70
  6. Step 6: Final answer
    x = 1,294,792.31

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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.