Home / 557,739.18-769,684.86-303,090.36

Finding the Fourth Proportional to 557,739.18, 769,684.86 and 303,090.36

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Solution

The fourth proportional to 557,739.18, 769,684.86 and 303,090.36 is: 418,267.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,739.18 : 769,684.86 = 303,090.36 : x
  2. Step 2: Convert to fraction form
    557,739.18/769,684.86 = 303,090.36/x
  3. Step 3: Cross multiply
    557,739.18x = 769,684.86 × 303,090.36
  4. Step 4: Simplify right side
    557,739.18x = 233,284,061,303.95
  5. Step 5: Solve for x
    x = 233,284,061,303.95/557,739.18
  6. Step 6: Final answer
    x = 418,267.30

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.