Home / 762,318.30-1,051,928.91-422,720.94

Finding the Fourth Proportional to 762,318.30, 1,051,928.91 and 422,720.94

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Solution

The fourth proportional to 762,318.30, 1,051,928.91 and 422,720.94 is: 583,315.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    762,318.30 : 1,051,928.91 = 422,720.94 : x
  2. Step 2: Convert to fraction form
    762,318.30/1,051,928.91 = 422,720.94/x
  3. Step 3: Cross multiply
    762,318.30x = 1,051,928.91 × 422,720.94
  4. Step 4: Simplify right side
    762,318.30x = 444,672,377,648.38
  5. Step 5: Solve for x
    x = 444,672,377,648.38/762,318.30
  6. Step 6: Final answer
    x = 583,315.89

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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.