Home / 1,220,261.02-1,683,923.71-668,957.89

Finding the Fourth Proportional to 1,220,261.02, 1,683,923.71 and 668,957.89

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Solution

The fourth proportional to 1,220,261.02, 1,683,923.71 and 668,957.89 is: 923,141.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,220,261.02 : 1,683,923.71 = 668,957.89 : x
  2. Step 2: Convert to fraction form
    1,220,261.02/1,683,923.71 = 668,957.89/x
  3. Step 3: Cross multiply
    1,220,261.02x = 1,683,923.71 × 668,957.89
  4. Step 4: Simplify right side
    1,220,261.02x = 1,126,474,051,962.57
  5. Step 5: Solve for x
    x = 1,126,474,051,962.57/1,220,261.02
  6. Step 6: Final answer
    x = 923,141.88

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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.