Home / 1,107,705.02-1,661,409.90-308,919.68

Finding the Fourth Proportional to 1,107,705.02, 1,661,409.90 and 308,919.68

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Solution

The fourth proportional to 1,107,705.02, 1,661,409.90 and 308,919.68 is: 463,338.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,107,705.02 : 1,661,409.90 = 308,919.68 : x
  2. Step 2: Convert to fraction form
    1,107,705.02/1,661,409.90 = 308,919.68/x
  3. Step 3: Cross multiply
    1,107,705.02x = 1,661,409.90 × 308,919.68
  4. Step 4: Simplify right side
    1,107,705.02x = 513,242,214,656.83
  5. Step 5: Solve for x
    x = 513,242,214,656.83/1,107,705.02
  6. Step 6: Final answer
    x = 463,338.35

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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.