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Finding the Fourth Proportional to 802,440.54, 1,205,541.54 and 757,045.62

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Solution

The fourth proportional to 802,440.54, 1,205,541.54 and 757,045.62 is: 1,137,342.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    802,440.54 : 1,205,541.54 = 757,045.62 : x
  2. Step 2: Convert to fraction form
    802,440.54/1,205,541.54 = 757,045.62/x
  3. Step 3: Cross multiply
    802,440.54x = 1,205,541.54 × 757,045.62
  4. Step 4: Simplify right side
    802,440.54x = 912,649,942,585.06
  5. Step 5: Solve for x
    x = 912,649,942,585.06/802,440.54
  6. Step 6: Final answer
    x = 1,137,342.77

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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.