Home / 645,821.20-966,888.60-572,093.20

Finding the Fourth Proportional to 645,821.20, 966,888.60 and 572,093.20

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Solution

The fourth proportional to 645,821.20, 966,888.60 and 572,093.20 is: 856,507.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    645,821.20 : 966,888.60 = 572,093.20 : x
  2. Step 2: Convert to fraction form
    645,821.20/966,888.60 = 572,093.20/x
  3. Step 3: Cross multiply
    645,821.20x = 966,888.60 × 572,093.20
  4. Step 4: Simplify right side
    645,821.20x = 553,150,393,217.52
  5. Step 5: Solve for x
    x = 553,150,393,217.52/645,821.20
  6. Step 6: Final answer
    x = 856,507.02

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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.