Finding the Fourth Proportional to 1,226,281.68, 1,838,755.35 and 427,348.71
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Solution
The fourth proportional to 1,226,281.68, 1,838,755.35 and 427,348.71 is: 640,790.56
Step by Step Solution
- Step 1: Write the proportion equation
1,226,281.68 : 1,838,755.35 = 427,348.71 : x - Step 2: Convert to fraction form
1,226,281.68/1,838,755.35 = 427,348.71/x - Step 3: Cross multiply
1,226,281.68x = 1,838,755.35 × 427,348.71 - Step 4: Simplify right side
1,226,281.68x = 785,789,726,828.10 - Step 5: Solve for x
x = 785,789,726,828.10/1,226,281.68 - Step 6: Final answer
x = 640,790.56
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.