Home / 891,880.80-1,335,747.60-609,871.20

Finding the Fourth Proportional to 891,880.80, 1,335,747.60 and 609,871.20

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Solution

The fourth proportional to 891,880.80, 1,335,747.60 and 609,871.20 is: 913,388.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    891,880.80 : 1,335,747.60 = 609,871.20 : x
  2. Step 2: Convert to fraction form
    891,880.80/1,335,747.60 = 609,871.20/x
  3. Step 3: Cross multiply
    891,880.80x = 1,335,747.60 × 609,871.20
  4. Step 4: Simplify right side
    891,880.80x = 814,633,991,709.12
  5. Step 5: Solve for x
    x = 814,633,991,709.12/891,880.80
  6. Step 6: Final answer
    x = 913,388.87

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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.