Home / 903,309.70-1,355,146.80-263,612.20

Finding the Fourth Proportional to 903,309.70, 1,355,146.80 and 263,612.20

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Solution

The fourth proportional to 903,309.70, 1,355,146.80 and 263,612.20 is: 395,471.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    903,309.70 : 1,355,146.80 = 263,612.20 : x
  2. Step 2: Convert to fraction form
    903,309.70/1,355,146.80 = 263,612.20/x
  3. Step 3: Cross multiply
    903,309.70x = 1,355,146.80 × 263,612.20
  4. Step 4: Simplify right side
    903,309.70x = 357,233,229,270.96
  5. Step 5: Solve for x
    x = 357,233,229,270.96/903,309.70
  6. Step 6: Final answer
    x = 395,471.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.