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Finding the Fourth Proportional to 472,453.48, 651,456.12 and 386,144.59

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Solution

The fourth proportional to 472,453.48, 651,456.12 and 386,144.59 is: 532,446.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,453.48 : 651,456.12 = 386,144.59 : x
  2. Step 2: Convert to fraction form
    472,453.48/651,456.12 = 386,144.59/x
  3. Step 3: Cross multiply
    472,453.48x = 651,456.12 × 386,144.59
  4. Step 4: Simplify right side
    472,453.48x = 251,556,256,360.39
  5. Step 5: Solve for x
    x = 251,556,256,360.39/472,453.48
  6. Step 6: Final answer
    x = 532,446.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.