Home / 820,152.28-1,230,086.56-370,768.64

Finding the Fourth Proportional to 820,152.28, 1,230,086.56 and 370,768.64

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Solution

The fourth proportional to 820,152.28, 1,230,086.56 and 370,768.64 is: 556,088.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,152.28 : 1,230,086.56 = 370,768.64 : x
  2. Step 2: Convert to fraction form
    820,152.28/1,230,086.56 = 370,768.64/x
  3. Step 3: Cross multiply
    820,152.28x = 1,230,086.56 × 370,768.64
  4. Step 4: Simplify right side
    820,152.28x = 456,077,520,933.48
  5. Step 5: Solve for x
    x = 456,077,520,933.48/820,152.28
  6. Step 6: Final answer
    x = 556,088.83

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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.