Home / 499,828.40-748,835.40-288,839.60

Finding the Fourth Proportional to 499,828.40, 748,835.40 and 288,839.60

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Solution

The fourth proportional to 499,828.40, 748,835.40 and 288,839.60 is: 432,735.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,828.40 : 748,835.40 = 288,839.60 : x
  2. Step 2: Convert to fraction form
    499,828.40/748,835.40 = 288,839.60/x
  3. Step 3: Cross multiply
    499,828.40x = 748,835.40 × 288,839.60
  4. Step 4: Simplify right side
    499,828.40x = 216,293,317,401.84
  5. Step 5: Solve for x
    x = 216,293,317,401.84/499,828.40
  6. Step 6: Final answer
    x = 432,735.15

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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.