Finding the Fourth Proportional to 2,153,875.68, 2,972,348.49 and 1,187,005.97
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Solution
The fourth proportional to 2,153,875.68, 2,972,348.49 and 1,187,005.97 is: 1,638,068.27
Step by Step Solution
- Step 1: Write the proportion equation
2,153,875.68 : 2,972,348.49 = 1,187,005.97 : x - Step 2: Convert to fraction form
2,153,875.68/2,972,348.49 = 1,187,005.97/x - Step 3: Cross multiply
2,153,875.68x = 2,972,348.49 × 1,187,005.97 - Step 4: Simplify right side
2,153,875.68x = 3,528,195,402,550.49 - Step 5: Solve for x
x = 3,528,195,402,550.49/2,153,875.68 - Step 6: Final answer
x = 1,638,068.27
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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.