Finding the Fourth Proportional to 1,643,188.16, 2,267,557.84 and 918,041.36
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Solution
The fourth proportional to 1,643,188.16, 2,267,557.84 and 918,041.36 is: 1,266,873.71
Step by Step Solution
- Step 1: Write the proportion equation
1,643,188.16 : 2,267,557.84 = 918,041.36 : x - Step 2: Convert to fraction form
1,643,188.16/2,267,557.84 = 918,041.36/x - Step 3: Cross multiply
1,643,188.16x = 2,267,557.84 × 918,041.36 - Step 4: Simplify right side
1,643,188.16x = 2,081,711,883,312.26 - Step 5: Solve for x
x = 2,081,711,883,312.26/1,643,188.16 - Step 6: Final answer
x = 1,266,873.71
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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.