Home / 2,130,031.20-3,193,880.40-866,431.20

Finding the Fourth Proportional to 2,130,031.20, 3,193,880.40 and 866,431.20

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Solution

The fourth proportional to 2,130,031.20, 3,193,880.40 and 866,431.20 is: 1,299,172.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,130,031.20 : 3,193,880.40 = 866,431.20 : x
  2. Step 2: Convert to fraction form
    2,130,031.20/3,193,880.40 = 866,431.20/x
  3. Step 3: Cross multiply
    2,130,031.20x = 3,193,880.40 × 866,431.20
  4. Step 4: Simplify right side
    2,130,031.20x = 2,767,277,627,628.48
  5. Step 5: Solve for x
    x = 2,767,277,627,628.48/2,130,031.20
  6. Step 6: Final answer
    x = 1,299,172.34

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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.