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Finding the Fourth Proportional to 557,988.76, 770,028.96 and 303,339.36

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Solution

The fourth proportional to 557,988.76, 770,028.96 and 303,339.36 is: 418,610.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,988.76 : 770,028.96 = 303,339.36 : x
  2. Step 2: Convert to fraction form
    557,988.76/770,028.96 = 303,339.36/x
  3. Step 3: Cross multiply
    557,988.76x = 770,028.96 × 303,339.36
  4. Step 4: Simplify right side
    557,988.76x = 233,580,091,907.87
  5. Step 5: Solve for x
    x = 233,580,091,907.87/557,988.76
  6. Step 6: Final answer
    x = 418,610.75

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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.