Home / 839,838.60-1,259,388.54-307,221.48

Finding the Fourth Proportional to 839,838.60, 1,259,388.54 and 307,221.48

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Solution

The fourth proportional to 839,838.60, 1,259,388.54 and 307,221.48 is: 460,697.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,838.60 : 1,259,388.54 = 307,221.48 : x
  2. Step 2: Convert to fraction form
    839,838.60/1,259,388.54 = 307,221.48/x
  3. Step 3: Cross multiply
    839,838.60x = 1,259,388.54 × 307,221.48
  4. Step 4: Simplify right side
    839,838.60x = 386,911,211,153.84
  5. Step 5: Solve for x
    x = 386,911,211,153.84/839,838.60
  6. Step 6: Final answer
    x = 460,697.10

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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.