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Finding the Fourth Proportional to 573,674.17, 860,123.03 and 321,128.98

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Solution

The fourth proportional to 573,674.17, 860,123.03 and 321,128.98 is: 481,476.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    573,674.17 : 860,123.03 = 321,128.98 : x
  2. Step 2: Convert to fraction form
    573,674.17/860,123.03 = 321,128.98/x
  3. Step 3: Cross multiply
    573,674.17x = 860,123.03 × 321,128.98
  4. Step 4: Simplify right side
    573,674.17x = 276,210,431,298.41
  5. Step 5: Solve for x
    x = 276,210,431,298.41/573,674.17
  6. Step 6: Final answer
    x = 481,476.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.