Home / 1,222,263.14-1,686,688.92-670,978.76

Finding the Fourth Proportional to 1,222,263.14, 1,686,688.92 and 670,978.76

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Solution

The fourth proportional to 1,222,263.14, 1,686,688.92 and 670,978.76 is: 925,931.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,222,263.14 : 1,686,688.92 = 670,978.76 : x
  2. Step 2: Convert to fraction form
    1,222,263.14/1,686,688.92 = 670,978.76/x
  3. Step 3: Cross multiply
    1,222,263.14x = 1,686,688.92 × 670,978.76
  4. Step 4: Simplify right side
    1,222,263.14x = 1,131,732,431,613.89
  5. Step 5: Solve for x
    x = 1,131,732,431,613.89/1,222,263.14
  6. Step 6: Final answer
    x = 925,931.90

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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.