Home / 434,530.20-651,795.30-118,986.60

Finding the Fourth Proportional to 434,530.20, 651,795.30 and 118,986.60

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Solution

The fourth proportional to 434,530.20, 651,795.30 and 118,986.60 is: 178,479.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,530.20 : 651,795.30 = 118,986.60 : x
  2. Step 2: Convert to fraction form
    434,530.20/651,795.30 = 118,986.60/x
  3. Step 3: Cross multiply
    434,530.20x = 651,795.30 × 118,986.60
  4. Step 4: Simplify right side
    434,530.20x = 77,554,906,642.98
  5. Step 5: Solve for x
    x = 77,554,906,642.98/434,530.20
  6. Step 6: Final answer
    x = 178,479.90

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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.