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Finding the Fourth Proportional to 449,831.84, 620,750.77 and 245,881.01

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Solution

The fourth proportional to 449,831.84, 620,750.77 and 245,881.01 is: 339,306.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    449,831.84 : 620,750.77 = 245,881.01 : x
  2. Step 2: Convert to fraction form
    449,831.84/620,750.77 = 245,881.01/x
  3. Step 3: Cross multiply
    449,831.84x = 620,750.77 × 245,881.01
  4. Step 4: Simplify right side
    449,831.84x = 152,630,827,223.05
  5. Step 5: Solve for x
    x = 152,630,827,223.05/449,831.84
  6. Step 6: Final answer
    x = 339,306.41

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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.