Home / 1,279,961.31-1,766,312.78-706,989.18

Finding the Fourth Proportional to 1,279,961.31, 1,766,312.78 and 706,989.18

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Solution

The fourth proportional to 1,279,961.31, 1,766,312.78 and 706,989.18 is: 975,626.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,279,961.31 : 1,766,312.78 = 706,989.18 : x
  2. Step 2: Convert to fraction form
    1,279,961.31/1,766,312.78 = 706,989.18/x
  3. Step 3: Cross multiply
    1,279,961.31x = 1,766,312.78 × 706,989.18
  4. Step 4: Simplify right side
    1,279,961.31x = 1,248,764,020,420.77
  5. Step 5: Solve for x
    x = 1,248,764,020,420.77/1,279,961.31
  6. Step 6: Final answer
    x = 975,626.38

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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.