Finding the Fourth Proportional to 1,128,839.49, 1,558,097.17 and 698,875.29
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Solution
The fourth proportional to 1,128,839.49, 1,558,097.17 and 698,875.29 is: 964,632.81
Step by Step Solution
- Step 1: Write the proportion equation
1,128,839.49 : 1,558,097.17 = 698,875.29 : x - Step 2: Convert to fraction form
1,128,839.49/1,558,097.17 = 698,875.29/x - Step 3: Cross multiply
1,128,839.49x = 1,558,097.17 × 698,875.29 - Step 4: Simplify right side
1,128,839.49x = 1,088,915,609,784.74 - Step 5: Solve for x
x = 1,088,915,609,784.74/1,128,839.49 - Step 6: Final answer
x = 964,632.81
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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.