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Finding the Fourth Proportional to 557,994.76, 770,000.07 and 303,343.72

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Solution

The fourth proportional to 557,994.76, 770,000.07 and 303,343.72 is: 418,596.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,994.76 : 770,000.07 = 303,343.72 : x
  2. Step 2: Convert to fraction form
    557,994.76/770,000.07 = 303,343.72/x
  3. Step 3: Cross multiply
    557,994.76x = 770,000.07 × 303,343.72
  4. Step 4: Simplify right side
    557,994.76x = 233,574,685,634.06
  5. Step 5: Solve for x
    x = 233,574,685,634.06/557,994.76
  6. Step 6: Final answer
    x = 418,596.56

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Similar ratio
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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.