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Finding the Fourth Proportional to 674,194.68, 930,370.86 and 372,382.20

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Solution

The fourth proportional to 674,194.68, 930,370.86 and 372,382.20 is: 513,877.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    674,194.68 : 930,370.86 = 372,382.20 : x
  2. Step 2: Convert to fraction form
    674,194.68/930,370.86 = 372,382.20/x
  3. Step 3: Cross multiply
    674,194.68x = 930,370.86 × 372,382.20
  4. Step 4: Simplify right side
    674,194.68x = 346,453,547,662.69
  5. Step 5: Solve for x
    x = 346,453,547,662.69/674,194.68
  6. Step 6: Final answer
    x = 513,877.61

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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.