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Finding the Fourth Proportional to 671,113.26, 926,176.16 and 384,651.86

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Solution

The fourth proportional to 671,113.26, 926,176.16 and 384,651.86 is: 530,842.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,113.26 : 926,176.16 = 384,651.86 : x
  2. Step 2: Convert to fraction form
    671,113.26/926,176.16 = 384,651.86/x
  3. Step 3: Cross multiply
    671,113.26x = 926,176.16 × 384,651.86
  4. Step 4: Simplify right side
    671,113.26x = 356,255,378,962.41
  5. Step 5: Solve for x
    x = 356,255,378,962.41/671,113.26
  6. Step 6: Final answer
    x = 530,842.41

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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.