Home / 839,974.08-1,260,032.40-307,366.80

Finding the Fourth Proportional to 839,974.08, 1,260,032.40 and 307,366.80

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Solution

The fourth proportional to 839,974.08, 1,260,032.40 and 307,366.80 is: 461,076.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,974.08 : 1,260,032.40 = 307,366.80 : x
  2. Step 2: Convert to fraction form
    839,974.08/1,260,032.40 = 307,366.80/x
  3. Step 3: Cross multiply
    839,974.08x = 1,260,032.40 × 307,366.80
  4. Step 4: Simplify right side
    839,974.08x = 387,292,126,684.32
  5. Step 5: Solve for x
    x = 387,292,126,684.32/839,974.08
  6. Step 6: Final answer
    x = 461,076.28

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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.