Home / 863,821.40-1,295,148.90-459,080.60

Finding the Fourth Proportional to 863,821.40, 1,295,148.90 and 459,080.60

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Solution

The fourth proportional to 863,821.40, 1,295,148.90 and 459,080.60 is: 688,310.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    863,821.40 : 1,295,148.90 = 459,080.60 : x
  2. Step 2: Convert to fraction form
    863,821.40/1,295,148.90 = 459,080.60/x
  3. Step 3: Cross multiply
    863,821.40x = 1,295,148.90 × 459,080.60
  4. Step 4: Simplify right side
    863,821.40x = 594,577,734,101.34
  5. Step 5: Solve for x
    x = 594,577,734,101.34/863,821.40
  6. Step 6: Final answer
    x = 688,310.96

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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.