Home / 823,146.60-1,240,889.54-768,280.26

Finding the Fourth Proportional to 823,146.60, 1,240,889.54 and 768,280.26

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Solution

The fourth proportional to 823,146.60, 1,240,889.54 and 768,280.26 is: 1,158,178.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    823,146.60 : 1,240,889.54 = 768,280.26 : x
  2. Step 2: Convert to fraction form
    823,146.60/1,240,889.54 = 768,280.26/x
  3. Step 3: Cross multiply
    823,146.60x = 1,240,889.54 × 768,280.26
  4. Step 4: Simplify right side
    823,146.60x = 953,350,940,343.18
  5. Step 5: Solve for x
    x = 953,350,940,343.18/823,146.60
  6. Step 6: Final answer
    x = 1,158,178.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.