Home / 839,953.80-1,259,784.90-307,200.60

Finding the Fourth Proportional to 839,953.80, 1,259,784.90 and 307,200.60

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Solution

The fourth proportional to 839,953.80, 1,259,784.90 and 307,200.60 is: 460,747.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,953.80 : 1,259,784.90 = 307,200.60 : x
  2. Step 2: Convert to fraction form
    839,953.80/1,259,784.90 = 307,200.60/x
  3. Step 3: Cross multiply
    839,953.80x = 1,259,784.90 × 307,200.60
  4. Step 4: Simplify right side
    839,953.80x = 387,006,677,150.94
  5. Step 5: Solve for x
    x = 387,006,677,150.94/839,953.80
  6. Step 6: Final answer
    x = 460,747.58

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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.