Home / 839,725.04-1,259,457.72-307,121.52

Finding the Fourth Proportional to 839,725.04, 1,259,457.72 and 307,121.52

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Solution

The fourth proportional to 839,725.04, 1,259,457.72 and 307,121.52 is: 460,634.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,725.04 : 1,259,457.72 = 307,121.52 : x
  2. Step 2: Convert to fraction form
    839,725.04/1,259,457.72 = 307,121.52/x
  3. Step 3: Cross multiply
    839,725.04x = 1,259,457.72 × 307,121.52
  4. Step 4: Simplify right side
    839,725.04x = 386,806,569,342.13
  5. Step 5: Solve for x
    x = 386,806,569,342.13/839,725.04
  6. Step 6: Final answer
    x = 460,634.79

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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.