Home / 1,086,606.55-1,631,615.82-920,307.07

Finding the Fourth Proportional to 1,086,606.55, 1,631,615.82 and 920,307.07

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Solution

The fourth proportional to 1,086,606.55, 1,631,615.82 and 920,307.07 is: 1,381,905.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,086,606.55 : 1,631,615.82 = 920,307.07 : x
  2. Step 2: Convert to fraction form
    1,086,606.55/1,631,615.82 = 920,307.07/x
  3. Step 3: Cross multiply
    1,086,606.55x = 1,631,615.82 × 920,307.07
  4. Step 4: Simplify right side
    1,086,606.55x = 1,501,587,574,669.85
  5. Step 5: Solve for x
    x = 1,501,587,574,669.85/1,086,606.55
  6. Step 6: Final answer
    x = 1,381,905.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.