Home / 1,440,765.95-1,988,370.11-820,597.45

Finding the Fourth Proportional to 1,440,765.95, 1,988,370.11 and 820,597.45

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Solution

The fourth proportional to 1,440,765.95, 1,988,370.11 and 820,597.45 is: 1,132,488.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,440,765.95 : 1,988,370.11 = 820,597.45 : x
  2. Step 2: Convert to fraction form
    1,440,765.95/1,988,370.11 = 820,597.45/x
  3. Step 3: Cross multiply
    1,440,765.95x = 1,988,370.11 × 820,597.45
  4. Step 4: Simplify right side
    1,440,765.95x = 1,631,651,441,922.22
  5. Step 5: Solve for x
    x = 1,631,651,441,922.22/1,440,765.95
  6. Step 6: Final answer
    x = 1,132,488.90

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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.