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Finding the Fourth Proportional to 671,165.37, 926,211.29 and 384,702.21

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Solution

The fourth proportional to 671,165.37, 926,211.29 and 384,702.21 is: 530,890.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,165.37 : 926,211.29 = 384,702.21 : x
  2. Step 2: Convert to fraction form
    671,165.37/926,211.29 = 384,702.21/x
  3. Step 3: Cross multiply
    671,165.37x = 926,211.29 × 384,702.21
  4. Step 4: Simplify right side
    671,165.37x = 356,315,528,266.44
  5. Step 5: Solve for x
    x = 356,315,528,266.44/671,165.37
  6. Step 6: Final answer
    x = 530,890.81

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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.