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Finding the Fourth Proportional to 557,993.16, 770,036.04 and 303,349.80

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Solution

The fourth proportional to 557,993.16, 770,036.04 and 303,349.80 is: 418,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    557,993.16 : 770,036.04 = 303,349.80 : x
  2. Step 2: Convert to fraction form
    557,993.16/770,036.04 = 303,349.80/x
  3. Step 3: Cross multiply
    557,993.16x = 770,036.04 × 303,349.80
  4. Step 4: Simplify right side
    557,993.16x = 233,590,278,726.79
  5. Step 5: Solve for x
    x = 233,590,278,726.79/557,993.16
  6. Step 6: Final answer
    x = 418,625.70

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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.