Home / 719,490.84-1,079,048.31-213,915.66

Finding the Fourth Proportional to 719,490.84, 1,079,048.31 and 213,915.66

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Solution

The fourth proportional to 719,490.84, 1,079,048.31 and 213,915.66 is: 320,817.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    719,490.84 : 1,079,048.31 = 213,915.66 : x
  2. Step 2: Convert to fraction form
    719,490.84/1,079,048.31 = 213,915.66/x
  3. Step 3: Cross multiply
    719,490.84x = 1,079,048.31 × 213,915.66
  4. Step 4: Simplify right side
    719,490.84x = 230,825,331,405.54
  5. Step 5: Solve for x
    x = 230,825,331,405.54/719,490.84
  6. Step 6: Final answer
    x = 320,817.61

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Double scale
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1.5x scale

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.