Finding the Fourth Proportional to 1,155,316.87, 1,594,214.56 and 638,988.75
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Solution
The fourth proportional to 1,155,316.87, 1,594,214.56 and 638,988.75 is: 881,736.60
Step by Step Solution
- Step 1: Write the proportion equation
1,155,316.87 : 1,594,214.56 = 638,988.75 : x - Step 2: Convert to fraction form
1,155,316.87/1,594,214.56 = 638,988.75/x - Step 3: Cross multiply
1,155,316.87x = 1,594,214.56 × 638,988.75 - Step 4: Simplify right side
1,155,316.87x = 1,018,685,169,724.94 - Step 5: Solve for x
x = 1,018,685,169,724.94/1,155,316.87 - Step 6: Final answer
x = 881,736.60
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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.