Finding the Fourth Proportional to 1,490,137.08, 2,056,433.58 and 917,507.64
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Solution
The fourth proportional to 1,490,137.08, 2,056,433.58 and 917,507.64 is: 1,266,187.89
Step by Step Solution
- Step 1: Write the proportion equation
1,490,137.08 : 2,056,433.58 = 917,507.64 : x - Step 2: Convert to fraction form
1,490,137.08/2,056,433.58 = 917,507.64/x - Step 3: Cross multiply
1,490,137.08x = 2,056,433.58 × 917,507.64 - Step 4: Simplify right side
1,490,137.08x = 1,886,793,520,802.55 - Step 5: Solve for x
x = 1,886,793,520,802.55/1,490,137.08 - Step 6: Final answer
x = 1,266,187.89
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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.