Home / 930,002.80-1,395,198.60-298,980.40

Finding the Fourth Proportional to 930,002.80, 1,395,198.60 and 298,980.40

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Solution

The fourth proportional to 930,002.80, 1,395,198.60 and 298,980.40 is: 448,533.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    930,002.80 : 1,395,198.60 = 298,980.40 : x
  2. Step 2: Convert to fraction form
    930,002.80/1,395,198.60 = 298,980.40/x
  3. Step 3: Cross multiply
    930,002.80x = 1,395,198.60 × 298,980.40
  4. Step 4: Simplify right side
    930,002.80x = 417,137,035,507.44
  5. Step 5: Solve for x
    x = 417,137,035,507.44/930,002.80
  6. Step 6: Final answer
    x = 448,533.10

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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.