Home / 1,207,475.37-1,666,280.78-691,212.15

Finding the Fourth Proportional to 1,207,475.37, 1,666,280.78 and 691,212.15

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Solution

The fourth proportional to 1,207,475.37, 1,666,280.78 and 691,212.15 is: 953,852.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,475.37 : 1,666,280.78 = 691,212.15 : x
  2. Step 2: Convert to fraction form
    1,207,475.37/1,666,280.78 = 691,212.15/x
  3. Step 3: Cross multiply
    1,207,475.37x = 1,666,280.78 × 691,212.15
  4. Step 4: Simplify right side
    1,207,475.37x = 1,151,753,520,447.48
  5. Step 5: Solve for x
    x = 1,151,753,520,447.48/1,207,475.37
  6. Step 6: Final answer
    x = 953,852.60

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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.