Home / 1,140,923.84-1,573,980.48-687,963.20

Finding the Fourth Proportional to 1,140,923.84, 1,573,980.48 and 687,963.20

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Solution

The fourth proportional to 1,140,923.84, 1,573,980.48 and 687,963.20 is: 949,091.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,140,923.84 : 1,573,980.48 = 687,963.20 : x
  2. Step 2: Convert to fraction form
    1,140,923.84/1,573,980.48 = 687,963.20/x
  3. Step 3: Cross multiply
    1,140,923.84x = 1,573,980.48 × 687,963.20
  4. Step 4: Simplify right side
    1,140,923.84x = 1,082,840,647,758.34
  5. Step 5: Solve for x
    x = 1,082,840,647,758.34/1,140,923.84
  6. Step 6: Final answer
    x = 949,091.09

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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.