Home / 907,309.80-1,360,964.70-308,946.60

Finding the Fourth Proportional to 907,309.80, 1,360,964.70 and 308,946.60

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Solution

The fourth proportional to 907,309.80, 1,360,964.70 and 308,946.60 is: 463,419.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,309.80 : 1,360,964.70 = 308,946.60 : x
  2. Step 2: Convert to fraction form
    907,309.80/1,360,964.70 = 308,946.60/x
  3. Step 3: Cross multiply
    907,309.80x = 1,360,964.70 × 308,946.60
  4. Step 4: Simplify right side
    907,309.80x = 420,465,416,785.02
  5. Step 5: Solve for x
    x = 420,465,416,785.02/907,309.80
  6. Step 6: Final answer
    x = 463,419.90

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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.