Home / 684,348.50-944,391.06-378,418.16

Finding the Fourth Proportional to 684,348.50, 944,391.06 and 378,418.16

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Solution

The fourth proportional to 684,348.50, 944,391.06 and 378,418.16 is: 522,211.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    684,348.50 : 944,391.06 = 378,418.16 : x
  2. Step 2: Convert to fraction form
    684,348.50/944,391.06 = 378,418.16/x
  3. Step 3: Cross multiply
    684,348.50x = 944,391.06 × 378,418.16
  4. Step 4: Simplify right side
    684,348.50x = 357,374,727,245.65
  5. Step 5: Solve for x
    x = 357,374,727,245.65/684,348.50
  6. Step 6: Final answer
    x = 522,211.60

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Double scale
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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.