Finding the Fourth Proportional to 1,219,444.79, 1,680,124.04 and 805,246.12
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Solution
The fourth proportional to 1,219,444.79, 1,680,124.04 and 805,246.12 is: 1,109,450.28
Step by Step Solution
- Step 1: Write the proportion equation
1,219,444.79 : 1,680,124.04 = 805,246.12 : x - Step 2: Convert to fraction form
1,219,444.79/1,680,124.04 = 805,246.12/x - Step 3: Cross multiply
1,219,444.79x = 1,680,124.04 × 805,246.12 - Step 4: Simplify right side
1,219,444.79x = 1,352,913,362,141.53 - Step 5: Solve for x
x = 1,352,913,362,141.53/1,219,444.79 - Step 6: Final answer
x = 1,109,450.28
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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.