Finding the Fourth Proportional to 610,854.10, 916,718.55 and 256,122.70
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Solution
The fourth proportional to 610,854.10, 916,718.55 and 256,122.70 is: 384,367.45
Step by Step Solution
- Step 1: Write the proportion equation
610,854.10 : 916,718.55 = 256,122.70 : x - Step 2: Convert to fraction form
610,854.10/916,718.55 = 256,122.70/x - Step 3: Cross multiply
610,854.10x = 916,718.55 × 256,122.70 - Step 4: Simplify right side
610,854.10x = 234,792,430,166.09 - Step 5: Solve for x
x = 234,792,430,166.09/610,854.10 - Step 6: Final answer
x = 384,367.45
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.