Home / 1,307,228.40-1,960,900.20-738,601.20

Finding the Fourth Proportional to 1,307,228.40, 1,960,900.20 and 738,601.20

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Solution

The fourth proportional to 1,307,228.40, 1,960,900.20 and 738,601.20 is: 1,107,934.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,307,228.40 : 1,960,900.20 = 738,601.20 : x
  2. Step 2: Convert to fraction form
    1,307,228.40/1,960,900.20 = 738,601.20/x
  3. Step 3: Cross multiply
    1,307,228.40x = 1,960,900.20 × 738,601.20
  4. Step 4: Simplify right side
    1,307,228.40x = 1,448,323,240,800.24
  5. Step 5: Solve for x
    x = 1,448,323,240,800.24/1,307,228.40
  6. Step 6: Final answer
    x = 1,107,934.34

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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.