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Finding the Fourth Proportional to 985,670.70, 1,478,283 and 452,679.36

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Solution

The fourth proportional to 985,670.70, 1,478,283 and 452,679.36 is: 678,916.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,670.70 : 1,478,283 = 452,679.36 : x
  2. Step 2: Convert to fraction form
    985,670.70/1,478,283 = 452,679.36/x
  3. Step 3: Cross multiply
    985,670.70x = 1,478,283 × 452,679.36
  4. Step 4: Simplify right side
    985,670.70x = 669,188,202,338.88
  5. Step 5: Solve for x
    x = 669,188,202,338.88/985,670.70
  6. Step 6: Final answer
    x = 678,916.60

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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.