Home / 684,217.80-1,026,423.90-210,853.80

Finding the Fourth Proportional to 684,217.80, 1,026,423.90 and 210,853.80

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Solution

The fourth proportional to 684,217.80, 1,026,423.90 and 210,853.80 is: 316,310.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,217.80 : 1,026,423.90 = 210,853.80 : x
  2. Step 2: Convert to fraction form
    684,217.80/1,026,423.90 = 210,853.80/x
  3. Step 3: Cross multiply
    684,217.80x = 1,026,423.90 × 210,853.80
  4. Step 4: Simplify right side
    684,217.80x = 216,425,379,725.82
  5. Step 5: Solve for x
    x = 216,425,379,725.82/684,217.80
  6. Step 6: Final answer
    x = 316,310.65

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Double scale
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Similar ratio
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1.5x scale

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.