Home / 505,925.04-698,176.80-279,570.54

Finding the Fourth Proportional to 505,925.04, 698,176.80 and 279,570.54

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Solution

The fourth proportional to 505,925.04, 698,176.80 and 279,570.54 is: 385,807.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,925.04 : 698,176.80 = 279,570.54 : x
  2. Step 2: Convert to fraction form
    505,925.04/698,176.80 = 279,570.54/x
  3. Step 3: Cross multiply
    505,925.04x = 698,176.80 × 279,570.54
  4. Step 4: Simplify right side
    505,925.04x = 195,189,664,991.47
  5. Step 5: Solve for x
    x = 195,189,664,991.47/505,925.04
  6. Step 6: Final answer
    x = 385,807.48

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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.