Home / 872,560.81-1,308,831.49-340,455.61

Finding the Fourth Proportional to 872,560.81, 1,308,831.49 and 340,455.61

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Solution

The fourth proportional to 872,560.81, 1,308,831.49 and 340,455.61 is: 510,679.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    872,560.81 : 1,308,831.49 = 340,455.61 : x
  2. Step 2: Convert to fraction form
    872,560.81/1,308,831.49 = 340,455.61/x
  3. Step 3: Cross multiply
    872,560.81x = 1,308,831.49 × 340,455.61
  4. Step 4: Simplify right side
    872,560.81x = 445,599,023,315.16
  5. Step 5: Solve for x
    x = 445,599,023,315.16/872,560.81
  6. Step 6: Final answer
    x = 510,679.62

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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.