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Finding the Fourth Proportional to 634,373, 875,354.28 and 347,817.68

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Solution

The fourth proportional to 634,373, 875,354.28 and 347,817.68 is: 479,944.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,373 : 875,354.28 = 347,817.68 : x
  2. Step 2: Convert to fraction form
    634,373/875,354.28 = 347,817.68/x
  3. Step 3: Cross multiply
    634,373x = 875,354.28 × 347,817.68
  4. Step 4: Simplify right side
    634,373x = 304,463,694,847.67
  5. Step 5: Solve for x
    x = 304,463,694,847.67/634,373
  6. Step 6: Final answer
    x = 479,944.28

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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.