Home / 820,664.20-1,230,558.90-346,814.20

Finding the Fourth Proportional to 820,664.20, 1,230,558.90 and 346,814.20

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Solution

The fourth proportional to 820,664.20, 1,230,558.90 and 346,814.20 is: 520,036.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    820,664.20 : 1,230,558.90 = 346,814.20 : x
  2. Step 2: Convert to fraction form
    820,664.20/1,230,558.90 = 346,814.20/x
  3. Step 3: Cross multiply
    820,664.20x = 1,230,558.90 × 346,814.20
  4. Step 4: Simplify right side
    820,664.20x = 426,775,300,456.38
  5. Step 5: Solve for x
    x = 426,775,300,456.38/820,664.20
  6. Step 6: Final answer
    x = 520,036.45

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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.