Finding the Fourth Proportional to 557,029.36, 768,702.84 and 315,358.58
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Solution
The fourth proportional to 557,029.36, 768,702.84 and 315,358.58 is: 435,196.16
Step by Step Solution
- Step 1: Write the proportion equation
557,029.36 : 768,702.84 = 315,358.58 : x - Step 2: Convert to fraction form
557,029.36/768,702.84 = 315,358.58/x - Step 3: Cross multiply
557,029.36x = 768,702.84 × 315,358.58 - Step 4: Simplify right side
557,029.36x = 242,417,036,064.37 - Step 5: Solve for x
x = 242,417,036,064.37/557,029.36 - Step 6: Final answer
x = 435,196.16
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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.