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Finding the Fourth Proportional to 671,102.30, 926,093.90 and 384,423.05

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Solution

The fourth proportional to 671,102.30, 926,093.90 and 384,423.05 is: 530,488.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    671,102.30 : 926,093.90 = 384,423.05 : x
  2. Step 2: Convert to fraction form
    671,102.30/926,093.90 = 384,423.05/x
  3. Step 3: Cross multiply
    671,102.30x = 926,093.90 × 384,423.05
  4. Step 4: Simplify right side
    671,102.30x = 356,011,835,071.81
  5. Step 5: Solve for x
    x = 356,011,835,071.81/671,102.30
  6. Step 6: Final answer
    x = 530,488.18

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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.