Home / 642,929.40-964,271.25-322,992.44

Finding the Fourth Proportional to 642,929.40, 964,271.25 and 322,992.44

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Solution

The fourth proportional to 642,929.40, 964,271.25 and 322,992.44 is: 484,426.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,929.40 : 964,271.25 = 322,992.44 : x
  2. Step 2: Convert to fraction form
    642,929.40/964,271.25 = 322,992.44/x
  3. Step 3: Cross multiply
    642,929.40x = 964,271.25 × 322,992.44
  4. Step 4: Simplify right side
    642,929.40x = 311,452,323,859.35
  5. Step 5: Solve for x
    x = 311,452,323,859.35/642,929.40
  6. Step 6: Final answer
    x = 484,426.94

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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.