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Finding the Fourth Proportional to 719,592, 993,051.36 and 397,302.72

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Solution

The fourth proportional to 719,592, 993,051.36 and 397,302.72 is: 548,285.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,592 : 993,051.36 = 397,302.72 : x
  2. Step 2: Convert to fraction form
    719,592/993,051.36 = 397,302.72/x
  3. Step 3: Cross multiply
    719,592x = 993,051.36 × 397,302.72
  4. Step 4: Simplify right side
    719,592x = 394,542,006,427.70
  5. Step 5: Solve for x
    x = 394,542,006,427.70/719,592
  6. Step 6: Final answer
    x = 548,285.70

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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.