Home / 1,235,915.20-1,854,966.30-729,843.40

Finding the Fourth Proportional to 1,235,915.20, 1,854,966.30 and 729,843.40

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Solution

The fourth proportional to 1,235,915.20, 1,854,966.30 and 729,843.40 is: 1,095,410.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,235,915.20 : 1,854,966.30 = 729,843.40 : x
  2. Step 2: Convert to fraction form
    1,235,915.20/1,854,966.30 = 729,843.40/x
  3. Step 3: Cross multiply
    1,235,915.20x = 1,854,966.30 × 729,843.40
  4. Step 4: Simplify right side
    1,235,915.20x = 1,353,834,911,277.42
  5. Step 5: Solve for x
    x = 1,353,834,911,277.42/1,235,915.20
  6. Step 6: Final answer
    x = 1,095,410.84

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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.