Home / 1,207,399.46-1,666,435.70-691,153.36

Finding the Fourth Proportional to 1,207,399.46, 1,666,435.70 and 691,153.36

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Solution

The fourth proportional to 1,207,399.46, 1,666,435.70 and 691,153.36 is: 953,920.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,207,399.46 : 1,666,435.70 = 691,153.36 : x
  2. Step 2: Convert to fraction form
    1,207,399.46/1,666,435.70 = 691,153.36/x
  3. Step 3: Cross multiply
    1,207,399.46x = 1,666,435.70 × 691,153.36
  4. Step 4: Simplify right side
    1,207,399.46x = 1,151,762,630,840.75
  5. Step 5: Solve for x
    x = 1,151,762,630,840.75/1,207,399.46
  6. Step 6: Final answer
    x = 953,920.12

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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.