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Finding the Fourth Proportional to 873,987.44, 1,206,126 and 492,028.72

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Solution

The fourth proportional to 873,987.44, 1,206,126 and 492,028.72 is: 679,012.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    873,987.44 : 1,206,126 = 492,028.72 : x
  2. Step 2: Convert to fraction form
    873,987.44/1,206,126 = 492,028.72/x
  3. Step 3: Cross multiply
    873,987.44x = 1,206,126 × 492,028.72
  4. Step 4: Simplify right side
    873,987.44x = 593,448,631,938.72
  5. Step 5: Solve for x
    x = 593,448,631,938.72/873,987.44
  6. Step 6: Final answer
    x = 679,012.77

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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.