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Finding the Fourth Proportional to 602,320.76, 831,213.70 and 330,402.54

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Solution

The fourth proportional to 602,320.76, 831,213.70 and 330,402.54 is: 455,961.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    602,320.76 : 831,213.70 = 330,402.54 : x
  2. Step 2: Convert to fraction form
    602,320.76/831,213.70 = 330,402.54/x
  3. Step 3: Cross multiply
    602,320.76x = 831,213.70 × 330,402.54
  4. Step 4: Simplify right side
    602,320.76x = 274,635,120,053.84
  5. Step 5: Solve for x
    x = 274,635,120,053.84/602,320.76
  6. Step 6: Final answer
    x = 455,961.57

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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.