Finding the Fourth Proportional to 646,477.36, 892,138.75 and 374,702.89
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Solution
The fourth proportional to 646,477.36, 892,138.75 and 374,702.89 is: 517,089.99
Step by Step Solution
- Step 1: Write the proportion equation
646,477.36 : 892,138.75 = 374,702.89 : x - Step 2: Convert to fraction form
646,477.36/892,138.75 = 374,702.89/x - Step 3: Cross multiply
646,477.36x = 892,138.75 × 374,702.89 - Step 4: Simplify right side
646,477.36x = 334,286,966,032.47 - Step 5: Solve for x
x = 334,286,966,032.47/646,477.36 - Step 6: Final answer
x = 517,089.99
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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.