Home / 423,318.84-634,953.53-309,581.85

Finding the Fourth Proportional to 423,318.84, 634,953.53 and 309,581.85

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Solution

The fourth proportional to 423,318.84, 634,953.53 and 309,581.85 is: 464,354.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,318.84 : 634,953.53 = 309,581.85 : x
  2. Step 2: Convert to fraction form
    423,318.84/634,953.53 = 309,581.85/x
  3. Step 3: Cross multiply
    423,318.84x = 634,953.53 × 309,581.85
  4. Step 4: Simplify right side
    423,318.84x = 196,570,088,481.43
  5. Step 5: Solve for x
    x = 196,570,088,481.43/423,318.84
  6. Step 6: Final answer
    x = 464,354.69

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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.