Finding the Fourth Proportional to 1,235,830.60, 1,850,117.10 and 921,680.20
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Solution
The fourth proportional to 1,235,830.60, 1,850,117.10 and 921,680.20 is: 1,379,813.95
Step by Step Solution
- Step 1: Write the proportion equation
1,235,830.60 : 1,850,117.10 = 921,680.20 : x - Step 2: Convert to fraction form
1,235,830.60/1,850,117.10 = 921,680.20/x - Step 3: Cross multiply
1,235,830.60x = 1,850,117.10 × 921,680.20 - Step 4: Simplify right side
1,235,830.60x = 1,705,216,298,751.42 - Step 5: Solve for x
x = 1,705,216,298,751.42/1,235,830.60 - Step 6: Final answer
x = 1,379,813.95
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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.