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Finding the Fourth Proportional to 779,652, 1,169,944.56 and 336,420

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Solution

The fourth proportional to 779,652, 1,169,944.56 and 336,420 is: 504,831.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    779,652 : 1,169,944.56 = 336,420 : x
  2. Step 2: Convert to fraction form
    779,652/1,169,944.56 = 336,420/x
  3. Step 3: Cross multiply
    779,652x = 1,169,944.56 × 336,420
  4. Step 4: Simplify right side
    779,652x = 393,592,748,875.20
  5. Step 5: Solve for x
    x = 393,592,748,875.20/779,652
  6. Step 6: Final answer
    x = 504,831.32

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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.