Home / 862,499.95-1,189,442.62-681,643.95

Finding the Fourth Proportional to 862,499.95, 1,189,442.62 and 681,643.95

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Solution

The fourth proportional to 862,499.95, 1,189,442.62 and 681,643.95 is: 940,030.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,499.95 : 1,189,442.62 = 681,643.95 : x
  2. Step 2: Convert to fraction form
    862,499.95/1,189,442.62 = 681,643.95/x
  3. Step 3: Cross multiply
    862,499.95x = 1,189,442.62 × 681,643.95
  4. Step 4: Simplify right side
    862,499.95x = 810,776,365,795.15
  5. Step 5: Solve for x
    x = 810,776,365,795.15/862,499.95
  6. Step 6: Final answer
    x = 940,030.62

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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.