Finding the Fourth Proportional to 847,128.04, 1,268,740.86 and 509,427.88
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Solution
The fourth proportional to 847,128.04, 1,268,740.86 and 509,427.88 is: 762,968.45
Step by Step Solution
- Step 1: Write the proportion equation
847,128.04 : 1,268,740.86 = 509,427.88 : x - Step 2: Convert to fraction form
847,128.04/1,268,740.86 = 509,427.88/x - Step 3: Cross multiply
847,128.04x = 1,268,740.86 × 509,427.88 - Step 4: Simplify right side
847,128.04x = 646,331,966,579.18 - Step 5: Solve for x
x = 646,331,966,579.18/847,128.04 - Step 6: Final answer
x = 762,968.45
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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.