Home / 380,706.23-571,038.27-127,960.56

Finding the Fourth Proportional to 380,706.23, 571,038.27 and 127,960.56

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Solution

The fourth proportional to 380,706.23, 571,038.27 and 127,960.56 is: 191,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,706.23 : 571,038.27 = 127,960.56 : x
  2. Step 2: Convert to fraction form
    380,706.23/571,038.27 = 127,960.56/x
  3. Step 3: Cross multiply
    380,706.23x = 571,038.27 × 127,960.56
  4. Step 4: Simplify right side
    380,706.23x = 73,070,376,810.63
  5. Step 5: Solve for x
    x = 73,070,376,810.63/380,706.23
  6. Step 6: Final answer
    x = 191,933.76

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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.