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Finding the Fourth Proportional to 380,469.61, 570,711.69 and 124,302.89

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Solution

The fourth proportional to 380,469.61, 570,711.69 and 124,302.89 is: 186,456.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,469.61 : 570,711.69 = 124,302.89 : x
  2. Step 2: Convert to fraction form
    380,469.61/570,711.69 = 124,302.89/x
  3. Step 3: Cross multiply
    380,469.61x = 570,711.69 × 124,302.89
  4. Step 4: Simplify right side
    380,469.61x = 70,941,112,423.78
  5. Step 5: Solve for x
    x = 70,941,112,423.78/380,469.61
  6. Step 6: Final answer
    x = 186,456.71

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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.