Home / 649,102.81-972,783.87-505,182.40

Finding the Fourth Proportional to 649,102.81, 972,783.87 and 505,182.40

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Solution

The fourth proportional to 649,102.81, 972,783.87 and 505,182.40 is: 757,096.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    649,102.81 : 972,783.87 = 505,182.40 : x
  2. Step 2: Convert to fraction form
    649,102.81/972,783.87 = 505,182.40/x
  3. Step 3: Cross multiply
    649,102.81x = 972,783.87 × 505,182.40
  4. Step 4: Simplify right side
    649,102.81x = 491,433,290,127.89
  5. Step 5: Solve for x
    x = 491,433,290,127.89/649,102.81
  6. Step 6: Final answer
    x = 757,096.23

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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.