Finding the Fourth Proportional to 1,119,766.16, 1,545,306.72 and 690,330.08
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Solution
The fourth proportional to 1,119,766.16, 1,545,306.72 and 690,330.08 is: 952,673.65
Step by Step Solution
- Step 1: Write the proportion equation
1,119,766.16 : 1,545,306.72 = 690,330.08 : x - Step 2: Convert to fraction form
1,119,766.16/1,545,306.72 = 690,330.08/x - Step 3: Cross multiply
1,119,766.16x = 1,545,306.72 × 690,330.08 - Step 4: Simplify right side
1,119,766.16x = 1,066,771,711,642.14 - Step 5: Solve for x
x = 1,066,771,711,642.14/1,119,766.16 - Step 6: Final answer
x = 952,673.65
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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.