Home / 648,693.20-973,039.80-228,011.60

Finding the Fourth Proportional to 648,693.20, 973,039.80 and 228,011.60

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Solution

The fourth proportional to 648,693.20, 973,039.80 and 228,011.60 is: 342,017.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    648,693.20 : 973,039.80 = 228,011.60 : x
  2. Step 2: Convert to fraction form
    648,693.20/973,039.80 = 228,011.60/x
  3. Step 3: Cross multiply
    648,693.20x = 973,039.80 × 228,011.60
  4. Step 4: Simplify right side
    648,693.20x = 221,864,361,661.68
  5. Step 5: Solve for x
    x = 221,864,361,661.68/648,693.20
  6. Step 6: Final answer
    x = 342,017.40

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Similar ratio
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1.5x scale

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.