Home / 765,751.80-1,148,627.76-204,771.72

Finding the Fourth Proportional to 765,751.80, 1,148,627.76 and 204,771.72

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Solution

The fourth proportional to 765,751.80, 1,148,627.76 and 204,771.72 is: 307,157.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,751.80 : 1,148,627.76 = 204,771.72 : x
  2. Step 2: Convert to fraction form
    765,751.80/1,148,627.76 = 204,771.72/x
  3. Step 3: Cross multiply
    765,751.80x = 1,148,627.76 × 204,771.72
  4. Step 4: Simplify right side
    765,751.80x = 235,206,482,054.95
  5. Step 5: Solve for x
    x = 235,206,482,054.95/765,751.80
  6. Step 6: Final answer
    x = 307,157.60

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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.