Home / 1,647,062.40-2,272,840.56-921,787.68

Finding the Fourth Proportional to 1,647,062.40, 2,272,840.56 and 921,787.68

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Solution

The fourth proportional to 1,647,062.40, 2,272,840.56 and 921,787.68 is: 1,272,007.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,647,062.40 : 2,272,840.56 = 921,787.68 : x
  2. Step 2: Convert to fraction form
    1,647,062.40/2,272,840.56 = 921,787.68/x
  3. Step 3: Cross multiply
    1,647,062.40x = 2,272,840.56 × 921,787.68
  4. Step 4: Simplify right side
    1,647,062.40x = 2,095,076,426,812.30
  5. Step 5: Solve for x
    x = 2,095,076,426,812.30/1,647,062.40
  6. Step 6: Final answer
    x = 1,272,007.93

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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.