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Finding the Fourth Proportional to 634,293.46, 874,478.21 and 503,903.78

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Solution

The fourth proportional to 634,293.46, 874,478.21 and 503,903.78 is: 694,714.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    634,293.46 : 874,478.21 = 503,903.78 : x
  2. Step 2: Convert to fraction form
    634,293.46/874,478.21 = 503,903.78/x
  3. Step 3: Cross multiply
    634,293.46x = 874,478.21 × 503,903.78
  4. Step 4: Simplify right side
    634,293.46x = 440,652,875,546.63
  5. Step 5: Solve for x
    x = 440,652,875,546.63/634,293.46
  6. Step 6: Final answer
    x = 694,714.52

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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.