Home / 821,824.40-1,234,810.20-522,448.40

Finding the Fourth Proportional to 821,824.40, 1,234,810.20 and 522,448.40

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Solution

The fourth proportional to 821,824.40, 1,234,810.20 and 522,448.40 is: 784,990.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    821,824.40 : 1,234,810.20 = 522,448.40 : x
  2. Step 2: Convert to fraction form
    821,824.40/1,234,810.20 = 522,448.40/x
  3. Step 3: Cross multiply
    821,824.40x = 1,234,810.20 × 522,448.40
  4. Step 4: Simplify right side
    821,824.40x = 645,124,613,293.68
  5. Step 5: Solve for x
    x = 645,124,613,293.68/821,824.40
  6. Step 6: Final answer
    x = 784,990.82

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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.