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Finding the Fourth Proportional to 407,505.40, 610,091.70 and 360,849.40

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Solution

The fourth proportional to 407,505.40, 610,091.70 and 360,849.40 is: 540,241.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    407,505.40 : 610,091.70 = 360,849.40 : x
  2. Step 2: Convert to fraction form
    407,505.40/610,091.70 = 360,849.40/x
  3. Step 3: Cross multiply
    407,505.40x = 610,091.70 × 360,849.40
  4. Step 4: Simplify right side
    407,505.40x = 220,151,223,889.98
  5. Step 5: Solve for x
    x = 220,151,223,889.98/407,505.40
  6. Step 6: Final answer
    x = 540,241.24

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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.