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Finding the Fourth Proportional to 604,703.84, 834,212.10 and 389,912.90

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Solution

The fourth proportional to 604,703.84, 834,212.10 and 389,912.90 is: 537,899.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    604,703.84 : 834,212.10 = 389,912.90 : x
  2. Step 2: Convert to fraction form
    604,703.84/834,212.10 = 389,912.90/x
  3. Step 3: Cross multiply
    604,703.84x = 834,212.10 × 389,912.90
  4. Step 4: Simplify right side
    604,703.84x = 325,270,059,126.09
  5. Step 5: Solve for x
    x = 325,270,059,126.09/604,703.84
  6. Step 6: Final answer
    x = 537,899.77

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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.