Finding the Fourth Proportional to 1,490,292.13, 2,056,871.53 and 878,409.17
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Solution
The fourth proportional to 1,490,292.13, 2,056,871.53 and 878,409.17 is: 1,212,362.85
Step by Step Solution
- Step 1: Write the proportion equation
1,490,292.13 : 2,056,871.53 = 878,409.17 : x - Step 2: Convert to fraction form
1,490,292.13/2,056,871.53 = 878,409.17/x - Step 3: Cross multiply
1,490,292.13x = 2,056,871.53 × 878,409.17 - Step 4: Simplify right side
1,490,292.13x = 1,806,774,813,463.93 - Step 5: Solve for x
x = 1,806,774,813,463.93/1,490,292.13 - Step 6: Final answer
x = 1,212,362.85
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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.