Finding the Fourth Proportional to 1,207,567.20, 1,666,444.08 and 663,702.84
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Solution
The fourth proportional to 1,207,567.20, 1,666,444.08 and 663,702.84 is: 915,910.66
Step by Step Solution
- Step 1: Write the proportion equation
1,207,567.20 : 1,666,444.08 = 663,702.84 : x - Step 2: Convert to fraction form
1,207,567.20/1,666,444.08 = 663,702.84/x - Step 3: Cross multiply
1,207,567.20x = 1,666,444.08 × 663,702.84 - Step 4: Simplify right side
1,207,567.20x = 1,106,023,668,597.19 - Step 5: Solve for x
x = 1,106,023,668,597.19/1,207,567.20 - Step 6: Final answer
x = 915,910.66
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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.