Finding the Fourth Proportional to 1,386,292.86, 1,915,714.68 and 1,000,374.84
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Solution
The fourth proportional to 1,386,292.86, 1,915,714.68 and 1,000,374.84 is: 1,382,415.52
Step by Step Solution
- Step 1: Write the proportion equation
1,386,292.86 : 1,915,714.68 = 1,000,374.84 : x - Step 2: Convert to fraction form
1,386,292.86/1,915,714.68 = 1,000,374.84/x - Step 3: Cross multiply
1,386,292.86x = 1,915,714.68 × 1,000,374.84 - Step 4: Simplify right side
1,386,292.86x = 1,916,432,766,490.65 - Step 5: Solve for x
x = 1,916,432,766,490.65/1,386,292.86 - Step 6: Final answer
x = 1,382,415.52
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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.