Home / 765,780.24-1,148,670.04-204,800.16

Finding the Fourth Proportional to 765,780.24, 1,148,670.04 and 204,800.16

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Solution

The fourth proportional to 765,780.24, 1,148,670.04 and 204,800.16 is: 307,200.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    765,780.24 : 1,148,670.04 = 204,800.16 : x
  2. Step 2: Convert to fraction form
    765,780.24/1,148,670.04 = 204,800.16/x
  3. Step 3: Cross multiply
    765,780.24x = 1,148,670.04 × 204,800.16
  4. Step 4: Simplify right side
    765,780.24x = 235,247,807,979.21
  5. Step 5: Solve for x
    x = 235,247,807,979.21/765,780.24
  6. Step 6: Final answer
    x = 307,200.15

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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.