Home / 499,829.40-748,836.90-288,840.60

Finding the Fourth Proportional to 499,829.40, 748,836.90 and 288,840.60

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Solution

The fourth proportional to 499,829.40, 748,836.90 and 288,840.60 is: 432,736.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    499,829.40 : 748,836.90 = 288,840.60 : x
  2. Step 2: Convert to fraction form
    499,829.40/748,836.90 = 288,840.60/x
  3. Step 3: Cross multiply
    499,829.40x = 748,836.90 × 288,840.60
  4. Step 4: Simplify right side
    499,829.40x = 216,294,499,498.14
  5. Step 5: Solve for x
    x = 216,294,499,498.14/499,829.40
  6. Step 6: Final answer
    x = 432,736.65

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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.