Home / 380,746.80-571,008.96-127,998.72

Finding the Fourth Proportional to 380,746.80, 571,008.96 and 127,998.72

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Solution

The fourth proportional to 380,746.80, 571,008.96 and 127,998.72 is: 191,960.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,746.80 : 571,008.96 = 127,998.72 : x
  2. Step 2: Convert to fraction form
    380,746.80/571,008.96 = 127,998.72/x
  3. Step 3: Cross multiply
    380,746.80x = 571,008.96 × 127,998.72
  4. Step 4: Simplify right side
    380,746.80x = 73,088,415,988.53
  5. Step 5: Solve for x
    x = 73,088,415,988.53/380,746.80
  6. Step 6: Final answer
    x = 191,960.68

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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.