Finding the Fourth Proportional to 1,369,644.30, 1,889,650.14 and 788,855.81
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Solution
The fourth proportional to 1,369,644.30, 1,889,650.14 and 788,855.81 is: 1,088,356.65
Step by Step Solution
- Step 1: Write the proportion equation
1,369,644.30 : 1,889,650.14 = 788,855.81 : x - Step 2: Convert to fraction form
1,369,644.30/1,889,650.14 = 788,855.81/x - Step 3: Cross multiply
1,369,644.30x = 1,889,650.14 × 788,855.81 - Step 4: Simplify right side
1,369,644.30x = 1,490,661,482,358.06 - Step 5: Solve for x
x = 1,490,661,482,358.06/1,369,644.30 - Step 6: Final answer
x = 1,088,356.65
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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.