Home / 1,296,148.20-1,944,222.30-1,028,459.40

Finding the Fourth Proportional to 1,296,148.20, 1,944,222.30 and 1,028,459.40

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Solution

The fourth proportional to 1,296,148.20, 1,944,222.30 and 1,028,459.40 is: 1,542,689.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,296,148.20 : 1,944,222.30 = 1,028,459.40 : x
  2. Step 2: Convert to fraction form
    1,296,148.20/1,944,222.30 = 1,028,459.40/x
  3. Step 3: Cross multiply
    1,296,148.20x = 1,944,222.30 × 1,028,459.40
  4. Step 4: Simplify right side
    1,296,148.20x = 1,999,553,700,124.62
  5. Step 5: Solve for x
    x = 1,999,553,700,124.62/1,296,148.20
  6. Step 6: Final answer
    x = 1,542,689.10

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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.