Home / 820,255.60-1,230,383.40-346,783.60

Finding the Fourth Proportional to 820,255.60, 1,230,383.40 and 346,783.60

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Solution

The fourth proportional to 820,255.60, 1,230,383.40 and 346,783.60 is: 520,175.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,255.60 : 1,230,383.40 = 346,783.60 : x
  2. Step 2: Convert to fraction form
    820,255.60/1,230,383.40 = 346,783.60/x
  3. Step 3: Cross multiply
    820,255.60x = 1,230,383.40 × 346,783.60
  4. Step 4: Simplify right side
    820,255.60x = 426,676,784,832.24
  5. Step 5: Solve for x
    x = 426,676,784,832.24/820,255.60
  6. Step 6: Final answer
    x = 520,175.40

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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.