Finding the Fourth Proportional to 644,746.08, 889,737.84 and 358,260.96
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Solution
The fourth proportional to 644,746.08, 889,737.84 and 358,260.96 is: 494,393.60
Step by Step Solution
- Step 1: Write the proportion equation
644,746.08 : 889,737.84 = 358,260.96 : x - Step 2: Convert to fraction form
644,746.08/889,737.84 = 358,260.96/x - Step 3: Cross multiply
644,746.08x = 889,737.84 × 358,260.96 - Step 4: Simplify right side
644,746.08x = 318,758,332,706.73 - Step 5: Solve for x
x = 318,758,332,706.73/644,746.08 - Step 6: Final answer
x = 494,393.60
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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.