Home / 806,312.70-1,112,712.39-443,762.82

Finding the Fourth Proportional to 806,312.70, 1,112,712.39 and 443,762.82

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Solution

The fourth proportional to 806,312.70, 1,112,712.39 and 443,762.82 is: 612,393.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    806,312.70 : 1,112,712.39 = 443,762.82 : x
  2. Step 2: Convert to fraction form
    806,312.70/1,112,712.39 = 443,762.82/x
  3. Step 3: Cross multiply
    806,312.70x = 1,112,712.39 × 443,762.82
  4. Step 4: Simplify right side
    806,312.70x = 493,780,388,035.34
  5. Step 5: Solve for x
    x = 493,780,388,035.34/806,312.70
  6. Step 6: Final answer
    x = 612,393.17

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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.