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Finding the Fourth Proportional to 660,334.80, 989,846.10 and 304,728.60

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Solution

The fourth proportional to 660,334.80, 989,846.10 and 304,728.60 is: 456,790.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,334.80 : 989,846.10 = 304,728.60 : x
  2. Step 2: Convert to fraction form
    660,334.80/989,846.10 = 304,728.60/x
  3. Step 3: Cross multiply
    660,334.80x = 989,846.10 × 304,728.60
  4. Step 4: Simplify right side
    660,334.80x = 301,634,416,268.46
  5. Step 5: Solve for x
    x = 301,634,416,268.46/660,334.80
  6. Step 6: Final answer
    x = 456,790.13

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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.