Finding the Fourth Proportional to 1,207,903.64, 1,666,807.93 and 711,108.68
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Solution
The fourth proportional to 1,207,903.64, 1,666,807.93 and 711,108.68 is: 981,271.65
Step by Step Solution
- Step 1: Write the proportion equation
1,207,903.64 : 1,666,807.93 = 711,108.68 : x - Step 2: Convert to fraction form
1,207,903.64/1,666,807.93 = 711,108.68/x - Step 3: Cross multiply
1,207,903.64x = 1,666,807.93 × 711,108.68 - Step 4: Simplify right side
1,207,903.64x = 1,185,281,589,305.08 - Step 5: Solve for x
x = 1,185,281,589,305.08/1,207,903.64 - Step 6: Final answer
x = 981,271.65
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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.