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Finding the Fourth Proportional to 634,130.37, 875,099.70 and 347,644.31

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Solution

The fourth proportional to 634,130.37, 875,099.70 and 347,644.31 is: 479,749.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,130.37 : 875,099.70 = 347,644.31 : x
  2. Step 2: Convert to fraction form
    634,130.37/875,099.70 = 347,644.31/x
  3. Step 3: Cross multiply
    634,130.37x = 875,099.70 × 347,644.31
  4. Step 4: Simplify right side
    634,130.37x = 304,223,427,012.21
  5. Step 5: Solve for x
    x = 304,223,427,012.21/634,130.37
  6. Step 6: Final answer
    x = 479,749.03

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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.