Home / 642,865.51-964,150.68-383,276.57

Finding the Fourth Proportional to 642,865.51, 964,150.68 and 383,276.57

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Solution

The fourth proportional to 642,865.51, 964,150.68 and 383,276.57 is: 574,826.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    642,865.51 : 964,150.68 = 383,276.57 : x
  2. Step 2: Convert to fraction form
    642,865.51/964,150.68 = 383,276.57/x
  3. Step 3: Cross multiply
    642,865.51x = 964,150.68 × 383,276.57
  4. Step 4: Simplify right side
    642,865.51x = 369,536,365,593.57
  5. Step 5: Solve for x
    x = 369,536,365,593.57/642,865.51
  6. Step 6: Final answer
    x = 574,826.86

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1.5x scale

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.