Finding the Fourth Proportional to 1,587,412.47, 2,190,669.96 and 862,301.68
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Solution
The fourth proportional to 1,587,412.47, 2,190,669.96 and 862,301.68 is: 1,189,998.46
Step by Step Solution
- Step 1: Write the proportion equation
1,587,412.47 : 2,190,669.96 = 862,301.68 : x - Step 2: Convert to fraction form
1,587,412.47/2,190,669.96 = 862,301.68/x - Step 3: Cross multiply
1,587,412.47x = 2,190,669.96 × 862,301.68 - Step 4: Simplify right side
1,587,412.47x = 1,889,018,386,833.53 - Step 5: Solve for x
x = 1,889,018,386,833.53/1,587,412.47 - Step 6: Final answer
x = 1,189,998.46
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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.