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Finding the Fourth Proportional to 380,613.52, 570,929.54 and 127,897.67

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Solution

The fourth proportional to 380,613.52, 570,929.54 and 127,897.67 is: 191,849.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    380,613.52 : 570,929.54 = 127,897.67 : x
  2. Step 2: Convert to fraction form
    380,613.52/570,929.54 = 127,897.67/x
  3. Step 3: Cross multiply
    380,613.52x = 570,929.54 × 127,897.67
  4. Step 4: Simplify right side
    380,613.52x = 73,020,555,365.27
  5. Step 5: Solve for x
    x = 73,020,555,365.27/380,613.52
  6. Step 6: Final answer
    x = 191,849.61

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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.