Home / 660,536.20-990,111.66-323,111.08

Finding the Fourth Proportional to 660,536.20, 990,111.66 and 323,111.08

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Solution

The fourth proportional to 660,536.20, 990,111.66 and 323,111.08 is: 484,327.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,536.20 : 990,111.66 = 323,111.08 : x
  2. Step 2: Convert to fraction form
    660,536.20/990,111.66 = 323,111.08/x
  3. Step 3: Cross multiply
    660,536.20x = 990,111.66 × 323,111.08
  4. Step 4: Simplify right side
    660,536.20x = 319,916,047,783.19
  5. Step 5: Solve for x
    x = 319,916,047,783.19/660,536.20
  6. Step 6: Final answer
    x = 484,327.80

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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.