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Finding the Fourth Proportional to 1,214,644.40, 1,820,411.40 and 932,764.40

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Solution

The fourth proportional to 1,214,644.40, 1,820,411.40 and 932,764.40 is: 1,397,952.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,214,644.40 : 1,820,411.40 = 932,764.40 : x
  2. Step 2: Convert to fraction form
    1,214,644.40/1,820,411.40 = 932,764.40/x
  3. Step 3: Cross multiply
    1,214,644.40x = 1,820,411.40 × 932,764.40
  4. Step 4: Simplify right side
    1,214,644.40x = 1,698,014,947,274.16
  5. Step 5: Solve for x
    x = 1,698,014,947,274.16/1,214,644.40
  6. Step 6: Final answer
    x = 1,397,952.31

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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.