Finding the Fourth Proportional to 2,152,378.15, 2,970,301.94 and 1,185,511.99
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Solution
The fourth proportional to 2,152,378.15, 2,970,301.94 and 1,185,511.99 is: 1,636,017.61
Step by Step Solution
- Step 1: Write the proportion equation
2,152,378.15 : 2,970,301.94 = 1,185,511.99 : x - Step 2: Convert to fraction form
2,152,378.15/2,970,301.94 = 1,185,511.99/x - Step 3: Cross multiply
2,152,378.15x = 2,970,301.94 × 1,185,511.99 - Step 4: Simplify right side
2,152,378.15x = 3,521,328,557,862.70 - Step 5: Solve for x
x = 3,521,328,557,862.70/2,152,378.15 - Step 6: Final answer
x = 1,636,017.61
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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.