Home / 985,359.60-1,477,693.80-511,887.60

Finding the Fourth Proportional to 985,359.60, 1,477,693.80 and 511,887.60

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Solution

The fourth proportional to 985,359.60, 1,477,693.80 and 511,887.60 is: 767,651.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    985,359.60 : 1,477,693.80 = 511,887.60 : x
  2. Step 2: Convert to fraction form
    985,359.60/1,477,693.80 = 511,887.60/x
  3. Step 3: Cross multiply
    985,359.60x = 1,477,693.80 × 511,887.60
  4. Step 4: Simplify right side
    985,359.60x = 756,413,132,816.88
  5. Step 5: Solve for x
    x = 756,413,132,816.88/985,359.60
  6. Step 6: Final answer
    x = 767,651.86

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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.