Finding the Fourth Proportional to 1,485,278.79, 2,049,535.12 and 840,586.74
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Solution
The fourth proportional to 1,485,278.79, 2,049,535.12 and 840,586.74 is: 1,159,925.03
Step by Step Solution
- Step 1: Write the proportion equation
1,485,278.79 : 2,049,535.12 = 840,586.74 : x - Step 2: Convert to fraction form
1,485,278.79/2,049,535.12 = 840,586.74/x - Step 3: Cross multiply
1,485,278.79x = 2,049,535.12 × 840,586.74 - Step 4: Simplify right side
1,485,278.79x = 1,722,812,045,036.31 - Step 5: Solve for x
x = 1,722,812,045,036.31/1,485,278.79 - Step 6: Final answer
x = 1,159,925.03
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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.