Home / 649,101.81-972,782.37-505,181.40

Finding the Fourth Proportional to 649,101.81, 972,782.37 and 505,181.40

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Solution

The fourth proportional to 649,101.81, 972,782.37 and 505,181.40 is: 757,094.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,101.81 : 972,782.37 = 505,181.40 : x
  2. Step 2: Convert to fraction form
    649,101.81/972,782.37 = 505,181.40/x
  3. Step 3: Cross multiply
    649,101.81x = 972,782.37 × 505,181.40
  4. Step 4: Simplify right side
    649,101.81x = 491,431,565,552.66
  5. Step 5: Solve for x
    x = 491,431,565,552.66/649,101.81
  6. Step 6: Final answer
    x = 757,094.74

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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.