Home / 1,056,138.80-1,585,763.40-819,748.40

Finding the Fourth Proportional to 1,056,138.80, 1,585,763.40 and 819,748.40

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Solution

The fourth proportional to 1,056,138.80, 1,585,763.40 and 819,748.40 is: 1,230,829.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,056,138.80 : 1,585,763.40 = 819,748.40 : x
  2. Step 2: Convert to fraction form
    1,056,138.80/1,585,763.40 = 819,748.40/x
  3. Step 3: Cross multiply
    1,056,138.80x = 1,585,763.40 × 819,748.40
  4. Step 4: Simplify right side
    1,056,138.80x = 1,299,927,009,928.56
  5. Step 5: Solve for x
    x = 1,299,927,009,928.56/1,056,138.80
  6. Step 6: Final answer
    x = 1,230,829.71

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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.