Finding the Fourth Proportional to 1,578,373.62, 2,176,702.99 and 1,034,311.81
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Solution
The fourth proportional to 1,578,373.62, 2,176,702.99 and 1,034,311.81 is: 1,426,398.40
Step by Step Solution
- Step 1: Write the proportion equation
1,578,373.62 : 2,176,702.99 = 1,034,311.81 : x - Step 2: Convert to fraction form
1,578,373.62/2,176,702.99 = 1,034,311.81/x - Step 3: Cross multiply
1,578,373.62x = 2,176,702.99 × 1,034,311.81 - Step 4: Simplify right side
1,578,373.62x = 2,251,389,600,805.57 - Step 5: Solve for x
x = 2,251,389,600,805.57/1,578,373.62 - Step 6: Final answer
x = 1,426,398.40
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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.