Finding the Fourth Proportional to 1,423,368.20, 1,964,246.82 and 778,791.08
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Solution
The fourth proportional to 1,423,368.20, 1,964,246.82 and 778,791.08 is: 1,074,730.98
Step by Step Solution
- Step 1: Write the proportion equation
1,423,368.20 : 1,964,246.82 = 778,791.08 : x - Step 2: Convert to fraction form
1,423,368.20/1,964,246.82 = 778,791.08/x - Step 3: Cross multiply
1,423,368.20x = 1,964,246.82 × 778,791.08 - Step 4: Simplify right side
1,423,368.20x = 1,529,737,902,334.37 - Step 5: Solve for x
x = 1,529,737,902,334.37/1,423,368.20 - Step 6: Final answer
x = 1,074,730.98
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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.