Home / 840,865.60-1,260,548.22-308,262.20

Finding the Fourth Proportional to 840,865.60, 1,260,548.22 and 308,262.20

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Solution

The fourth proportional to 840,865.60, 1,260,548.22 and 308,262.20 is: 462,118.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    840,865.60 : 1,260,548.22 = 308,262.20 : x
  2. Step 2: Convert to fraction form
    840,865.60/1,260,548.22 = 308,262.20/x
  3. Step 3: Cross multiply
    840,865.60x = 1,260,548.22 × 308,262.20
  4. Step 4: Simplify right side
    840,865.60x = 388,579,367,503.28
  5. Step 5: Solve for x
    x = 388,579,367,503.28/840,865.60
  6. Step 6: Final answer
    x = 462,118.28

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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.