Finding the Fourth Proportional to 1,983,684.08, 2,737,783.29 and 1,209,763.91
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Solution
The fourth proportional to 1,983,684.08, 2,737,783.29 and 1,209,763.91 is: 1,669,656.70
Step by Step Solution
- Step 1: Write the proportion equation
1,983,684.08 : 2,737,783.29 = 1,209,763.91 : x - Step 2: Convert to fraction form
1,983,684.08/2,737,783.29 = 1,209,763.91/x - Step 3: Cross multiply
1,983,684.08x = 2,737,783.29 × 1,209,763.91 - Step 4: Simplify right side
1,983,684.08x = 3,312,071,417,643.06 - Step 5: Solve for x
x = 3,312,071,417,643.06/1,983,684.08 - Step 6: Final answer
x = 1,669,656.70
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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.