Home / 380,669.52-571,056.70-127,969.62

Finding the Fourth Proportional to 380,669.52, 571,056.70 and 127,969.62

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Solution

The fourth proportional to 380,669.52, 571,056.70 and 127,969.62 is: 191,972.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,669.52 : 571,056.70 = 127,969.62 : x
  2. Step 2: Convert to fraction form
    380,669.52/571,056.70 = 127,969.62/x
  3. Step 3: Cross multiply
    380,669.52x = 571,056.70 × 127,969.62
  4. Step 4: Simplify right side
    380,669.52x = 73,077,908,897.45
  5. Step 5: Solve for x
    x = 73,077,908,897.45/380,669.52
  6. Step 6: Final answer
    x = 191,972.05

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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.