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Finding the Fourth Proportional to 671,154.12, 926,195.76 and 384,690.96

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Solution

The fourth proportional to 671,154.12, 926,195.76 and 384,690.96 is: 530,875.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,154.12 : 926,195.76 = 384,690.96 : x
  2. Step 2: Convert to fraction form
    671,154.12/926,195.76 = 384,690.96/x
  3. Step 3: Cross multiply
    671,154.12x = 926,195.76 × 384,690.96
  4. Step 4: Simplify right side
    671,154.12x = 356,299,136,062.33
  5. Step 5: Solve for x
    x = 356,299,136,062.33/671,154.12
  6. Step 6: Final answer
    x = 530,875.29

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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.