Home / 521,566.08-719,678.89-303,810.54

Finding the Fourth Proportional to 521,566.08, 719,678.89 and 303,810.54

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Solution

The fourth proportional to 521,566.08, 719,678.89 and 303,810.54 is: 419,210.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    521,566.08 : 719,678.89 = 303,810.54 : x
  2. Step 2: Convert to fraction form
    521,566.08/719,678.89 = 303,810.54/x
  3. Step 3: Cross multiply
    521,566.08x = 719,678.89 × 303,810.54
  4. Step 4: Simplify right side
    521,566.08x = 218,646,032,197.50
  5. Step 5: Solve for x
    x = 218,646,032,197.50/521,566.08
  6. Step 6: Final answer
    x = 419,210.61

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.