Home / 820,041.20-1,230,234.60-346,482.80

Finding the Fourth Proportional to 820,041.20, 1,230,234.60 and 346,482.80

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Solution

The fourth proportional to 820,041.20, 1,230,234.60 and 346,482.80 is: 519,797.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,041.20 : 1,230,234.60 = 346,482.80 : x
  2. Step 2: Convert to fraction form
    820,041.20/1,230,234.60 = 346,482.80/x
  3. Step 3: Cross multiply
    820,041.20x = 1,230,234.60 × 346,482.80
  4. Step 4: Simplify right side
    820,041.20x = 426,255,128,864.88
  5. Step 5: Solve for x
    x = 426,255,128,864.88/820,041.20
  6. Step 6: Final answer
    x = 519,797.21

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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.