Home / 684,131.40-1,026,307.26-210,816.54

Finding the Fourth Proportional to 684,131.40, 1,026,307.26 and 210,816.54

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Solution

The fourth proportional to 684,131.40, 1,026,307.26 and 210,816.54 is: 316,258.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,131.40 : 1,026,307.26 = 210,816.54 : x
  2. Step 2: Convert to fraction form
    684,131.40/1,026,307.26 = 210,816.54/x
  3. Step 3: Cross multiply
    684,131.40x = 1,026,307.26 × 210,816.54
  4. Step 4: Simplify right side
    684,131.40x = 216,362,545,530.08
  5. Step 5: Solve for x
    x = 216,362,545,530.08/684,131.40
  6. Step 6: Final answer
    x = 316,258.76

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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.