Home / 770,009.75-1,062,495.41-443,259.62

Finding the Fourth Proportional to 770,009.75, 1,062,495.41 and 443,259.62

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Solution

The fourth proportional to 770,009.75, 1,062,495.41 and 443,259.62 is: 611,630.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    770,009.75 : 1,062,495.41 = 443,259.62 : x
  2. Step 2: Convert to fraction form
    770,009.75/1,062,495.41 = 443,259.62/x
  3. Step 3: Cross multiply
    770,009.75x = 1,062,495.41 × 443,259.62
  4. Step 4: Simplify right side
    770,009.75x = 470,961,312,128.29
  5. Step 5: Solve for x
    x = 470,961,312,128.29/770,009.75
  6. Step 6: Final answer
    x = 611,630.33

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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.