Finding the Fourth Proportional to 1,125,471.39, 1,553,298.42 and 641,925.69
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Solution
The fourth proportional to 1,125,471.39, 1,553,298.42 and 641,925.69 is: 885,941.81
Step by Step Solution
- Step 1: Write the proportion equation
1,125,471.39 : 1,553,298.42 = 641,925.69 : x - Step 2: Convert to fraction form
1,125,471.39/1,553,298.42 = 641,925.69/x - Step 3: Cross multiply
1,125,471.39x = 1,553,298.42 × 641,925.69 - Step 4: Simplify right side
1,125,471.39x = 997,102,160,034.41 - Step 5: Solve for x
x = 997,102,160,034.41/1,125,471.39 - Step 6: Final answer
x = 885,941.81
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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.