Home / 684,440.95-1,026,318.78-211,064.80

Finding the Fourth Proportional to 684,440.95, 1,026,318.78 and 211,064.80

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Solution

The fourth proportional to 684,440.95, 1,026,318.78 and 211,064.80 is: 316,491.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,440.95 : 1,026,318.78 = 211,064.80 : x
  2. Step 2: Convert to fraction form
    684,440.95/1,026,318.78 = 211,064.80/x
  3. Step 3: Cross multiply
    684,440.95x = 1,026,318.78 × 211,064.80
  4. Step 4: Simplify right side
    684,440.95x = 216,619,768,036.94
  5. Step 5: Solve for x
    x = 216,619,768,036.94/684,440.95
  6. Step 6: Final answer
    x = 316,491.54

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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.