Finding the Fourth Proportional to 623,718.30, 860,534.76 and 381,748.62
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Solution
The fourth proportional to 623,718.30, 860,534.76 and 381,748.62 is: 526,692.83
Step by Step Solution
- Step 1: Write the proportion equation
623,718.30 : 860,534.76 = 381,748.62 : x - Step 2: Convert to fraction form
623,718.30/860,534.76 = 381,748.62/x - Step 3: Cross multiply
623,718.30x = 860,534.76 × 381,748.62 - Step 4: Simplify right side
623,718.30x = 328,507,957,092.03 - Step 5: Solve for x
x = 328,507,957,092.03/623,718.30 - Step 6: Final answer
x = 526,692.83
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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.