Home / 478,789.68-660,700.08-263,918.64

Finding the Fourth Proportional to 478,789.68, 660,700.08 and 263,918.64

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Solution

The fourth proportional to 478,789.68, 660,700.08 and 263,918.64 is: 364,191.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,789.68 : 660,700.08 = 263,918.64 : x
  2. Step 2: Convert to fraction form
    478,789.68/660,700.08 = 263,918.64/x
  3. Step 3: Cross multiply
    478,789.68x = 660,700.08 × 263,918.64
  4. Step 4: Simplify right side
    478,789.68x = 174,371,066,561.49
  5. Step 5: Solve for x
    x = 174,371,066,561.49/478,789.68
  6. Step 6: Final answer
    x = 364,191.36

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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.