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Finding the Fourth Proportional to 464,445.51, 640,341.43 and 300,812.96

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Solution

The fourth proportional to 464,445.51, 640,341.43 and 300,812.96 is: 414,737.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    464,445.51 : 640,341.43 = 300,812.96 : x
  2. Step 2: Convert to fraction form
    464,445.51/640,341.43 = 300,812.96/x
  3. Step 3: Cross multiply
    464,445.51x = 640,341.43 × 300,812.96
  4. Step 4: Simplify right side
    464,445.51x = 192,622,997,015.19
  5. Step 5: Solve for x
    x = 192,622,997,015.19/464,445.51
  6. Step 6: Final answer
    x = 414,737.56

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1.5x scale

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.