Home / 907,310.80-1,360,966.20-308,947.60

Finding the Fourth Proportional to 907,310.80, 1,360,966.20 and 308,947.60

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Solution

The fourth proportional to 907,310.80, 1,360,966.20 and 308,947.60 is: 463,421.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    907,310.80 : 1,360,966.20 = 308,947.60 : x
  2. Step 2: Convert to fraction form
    907,310.80/1,360,966.20 = 308,947.60/x
  3. Step 3: Cross multiply
    907,310.80x = 1,360,966.20 × 308,947.60
  4. Step 4: Simplify right side
    907,310.80x = 420,467,241,171.12
  5. Step 5: Solve for x
    x = 420,467,241,171.12/907,310.80
  6. Step 6: Final answer
    x = 463,421.40

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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.