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Finding the Fourth Proportional to 719,349.66, 992,702.59 and 397,059.84

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Solution

The fourth proportional to 719,349.66, 992,702.59 and 397,059.84 is: 547,942.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,349.66 : 992,702.59 = 397,059.84 : x
  2. Step 2: Convert to fraction form
    719,349.66/992,702.59 = 397,059.84/x
  3. Step 3: Cross multiply
    719,349.66x = 992,702.59 × 397,059.84
  4. Step 4: Simplify right side
    719,349.66x = 394,162,331,552.99
  5. Step 5: Solve for x
    x = 394,162,331,552.99/719,349.66
  6. Step 6: Final answer
    x = 547,942.61

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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.