Home / 684,658.80-1,027,085.40-211,294.80

Finding the Fourth Proportional to 684,658.80, 1,027,085.40 and 211,294.80

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Solution

The fourth proportional to 684,658.80, 1,027,085.40 and 211,294.80 is: 316,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,658.80 : 1,027,085.40 = 211,294.80 : x
  2. Step 2: Convert to fraction form
    684,658.80/1,027,085.40 = 211,294.80/x
  3. Step 3: Cross multiply
    684,658.80x = 1,027,085.40 × 211,294.80
  4. Step 4: Simplify right side
    684,658.80x = 217,017,804,175.92
  5. Step 5: Solve for x
    x = 217,017,804,175.92/684,658.80
  6. Step 6: Final answer
    x = 316,972.20

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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.