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Finding the Fourth Proportional to 676,533.45, 933,262.21 and 418,327.86

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Solution

The fourth proportional to 676,533.45, 933,262.21 and 418,327.86 is: 577,073.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    676,533.45 : 933,262.21 = 418,327.86 : x
  2. Step 2: Convert to fraction form
    676,533.45/933,262.21 = 418,327.86/x
  3. Step 3: Cross multiply
    676,533.45x = 933,262.21 × 418,327.86
  4. Step 4: Simplify right side
    676,533.45x = 390,409,577,416.04
  5. Step 5: Solve for x
    x = 390,409,577,416.04/676,533.45
  6. Step 6: Final answer
    x = 577,073.58

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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.