Finding the Fourth Proportional to 1,247,478.08, 1,721,420.68 and 703,439.96
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Solution
The fourth proportional to 1,247,478.08, 1,721,420.68 and 703,439.96 is: 970,691.28
Step by Step Solution
- Step 1: Write the proportion equation
1,247,478.08 : 1,721,420.68 = 703,439.96 : x - Step 2: Convert to fraction form
1,247,478.08/1,721,420.68 = 703,439.96/x - Step 3: Cross multiply
1,247,478.08x = 1,721,420.68 × 703,439.96 - Step 4: Simplify right side
1,247,478.08x = 1,210,916,094,282.37 - Step 5: Solve for x
x = 1,210,916,094,282.37/1,247,478.08 - Step 6: Final answer
x = 970,691.28
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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.