Home / 839,347.55-1,258,898.37-412,768.72

Finding the Fourth Proportional to 839,347.55, 1,258,898.37 and 412,768.72

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Solution

The fourth proportional to 839,347.55, 1,258,898.37 and 412,768.72 is: 619,092.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    839,347.55 : 1,258,898.37 = 412,768.72 : x
  2. Step 2: Convert to fraction form
    839,347.55/1,258,898.37 = 412,768.72/x
  3. Step 3: Cross multiply
    839,347.55x = 1,258,898.37 × 412,768.72
  4. Step 4: Simplify right side
    839,347.55x = 519,633,871,171.53
  5. Step 5: Solve for x
    x = 519,633,871,171.53/839,347.55
  6. Step 6: Final answer
    x = 619,092.61

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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.