Finding the Fourth Proportional to 867,953.80, 1,301,930.70 and 727,985.80
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Solution
The fourth proportional to 867,953.80, 1,301,930.70 and 727,985.80 is: 1,091,978.70
Step by Step Solution
- Step 1: Write the proportion equation
867,953.80 : 1,301,930.70 = 727,985.80 : x - Step 2: Convert to fraction form
867,953.80/1,301,930.70 = 727,985.80/x - Step 3: Cross multiply
867,953.80x = 1,301,930.70 × 727,985.80 - Step 4: Simplify right side
867,953.80x = 947,787,062,184.06 - Step 5: Solve for x
x = 947,787,062,184.06/867,953.80 - Step 6: Final answer
x = 1,091,978.70
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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.