Home / 770,946.76-1,063,919.12-422,081.35

Finding the Fourth Proportional to 770,946.76, 1,063,919.12 and 422,081.35

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Solution

The fourth proportional to 770,946.76, 1,063,919.12 and 422,081.35 is: 582,479.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,946.76 : 1,063,919.12 = 422,081.35 : x
  2. Step 2: Convert to fraction form
    770,946.76/1,063,919.12 = 422,081.35/x
  3. Step 3: Cross multiply
    770,946.76x = 1,063,919.12 × 422,081.35
  4. Step 4: Simplify right side
    770,946.76x = 449,060,416,855.82
  5. Step 5: Solve for x
    x = 449,060,416,855.82/770,946.76
  6. Step 6: Final answer
    x = 582,479.16

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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.