Finding the Fourth Proportional to 1,577,420.32, 2,174,289.78 and 1,232,657.08
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Solution
The fourth proportional to 1,577,420.32, 2,174,289.78 and 1,232,657.08 is: 1,699,073.90
Step by Step Solution
- Step 1: Write the proportion equation
1,577,420.32 : 2,174,289.78 = 1,232,657.08 : x - Step 2: Convert to fraction form
1,577,420.32/2,174,289.78 = 1,232,657.08/x - Step 3: Cross multiply
1,577,420.32x = 2,174,289.78 × 1,232,657.08 - Step 4: Simplify right side
1,577,420.32x = 2,680,153,691,288.64 - Step 5: Solve for x
x = 2,680,153,691,288.64/1,577,420.32 - Step 6: Final answer
x = 1,699,073.90
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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.