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Finding the Fourth Proportional to 504,780.16, 696,499.68 and 303,589.12

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Solution

The fourth proportional to 504,780.16, 696,499.68 and 303,589.12 is: 418,894.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    504,780.16 : 696,499.68 = 303,589.12 : x
  2. Step 2: Convert to fraction form
    504,780.16/696,499.68 = 303,589.12/x
  3. Step 3: Cross multiply
    504,780.16x = 696,499.68 × 303,589.12
  4. Step 4: Simplify right side
    504,780.16x = 211,449,724,931.48
  5. Step 5: Solve for x
    x = 211,449,724,931.48/504,780.16
  6. Step 6: Final answer
    x = 418,894.68

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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.