Home / 433,210.68-649,816.02-285,432.12

Finding the Fourth Proportional to 433,210.68, 649,816.02 and 285,432.12

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Solution

The fourth proportional to 433,210.68, 649,816.02 and 285,432.12 is: 428,148.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    433,210.68 : 649,816.02 = 285,432.12 : x
  2. Step 2: Convert to fraction form
    433,210.68/649,816.02 = 285,432.12/x
  3. Step 3: Cross multiply
    433,210.68x = 649,816.02 × 285,432.12
  4. Step 4: Simplify right side
    433,210.68x = 185,478,364,198.56
  5. Step 5: Solve for x
    x = 185,478,364,198.56/433,210.68
  6. Step 6: Final answer
    x = 428,148.18

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Similar ratio
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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.