Home / 862,222.81-1,189,867.84-499,856.71

Finding the Fourth Proportional to 862,222.81, 1,189,867.84 and 499,856.71

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Solution

The fourth proportional to 862,222.81, 1,189,867.84 and 499,856.71 is: 689,802.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    862,222.81 : 1,189,867.84 = 499,856.71 : x
  2. Step 2: Convert to fraction form
    862,222.81/1,189,867.84 = 499,856.71/x
  3. Step 3: Cross multiply
    862,222.81x = 1,189,867.84 × 499,856.71
  4. Step 4: Simplify right side
    862,222.81x = 594,763,423,837.21
  5. Step 5: Solve for x
    x = 594,763,423,837.21/862,222.81
  6. Step 6: Final answer
    x = 689,802.47

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.