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Finding the Fourth Proportional to 671,211.77, 926,313.57 and 384,774.91

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Solution

The fourth proportional to 671,211.77, 926,313.57 and 384,774.91 is: 531,013.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,211.77 : 926,313.57 = 384,774.91 : x
  2. Step 2: Convert to fraction form
    671,211.77/926,313.57 = 384,774.91/x
  3. Step 3: Cross multiply
    671,211.77x = 926,313.57 × 384,774.91
  4. Step 4: Simplify right side
    671,211.77x = 356,422,218,212.75
  5. Step 5: Solve for x
    x = 356,422,218,212.75/671,211.77
  6. Step 6: Final answer
    x = 531,013.07

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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.