Home / 380,723.19-570,682.90-127,763.83

Finding the Fourth Proportional to 380,723.19, 570,682.90 and 127,763.83

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Solution

The fourth proportional to 380,723.19, 570,682.90 and 127,763.83 is: 191,510.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,723.19 : 570,682.90 = 127,763.83 : x
  2. Step 2: Convert to fraction form
    380,723.19/570,682.90 = 127,763.83/x
  3. Step 3: Cross multiply
    380,723.19x = 570,682.90 × 127,763.83
  4. Step 4: Simplify right side
    380,723.19x = 72,912,633,019.51
  5. Step 5: Solve for x
    x = 72,912,633,019.51/380,723.19
  6. Step 6: Final answer
    x = 191,510.88

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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.