Home / 1,077,806.40-1,615,672.80-837,787.20

Finding the Fourth Proportional to 1,077,806.40, 1,615,672.80 and 837,787.20

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Solution

The fourth proportional to 1,077,806.40, 1,615,672.80 and 837,787.20 is: 1,255,874.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,077,806.40 : 1,615,672.80 = 837,787.20 : x
  2. Step 2: Convert to fraction form
    1,077,806.40/1,615,672.80 = 837,787.20/x
  3. Step 3: Cross multiply
    1,077,806.40x = 1,615,672.80 × 837,787.20
  4. Step 4: Simplify right side
    1,077,806.40x = 1,353,589,991,228.16
  5. Step 5: Solve for x
    x = 1,353,589,991,228.16/1,077,806.40
  6. Step 6: Final answer
    x = 1,255,874.89

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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.