Finding the Fourth Proportional to 1,587,637.10, 2,190,930.45 and 862,479.02
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Solution
The fourth proportional to 1,587,637.10, 2,190,930.45 and 862,479.02 is: 1,190,216.30
Step by Step Solution
- Step 1: Write the proportion equation
1,587,637.10 : 2,190,930.45 = 862,479.02 : x - Step 2: Convert to fraction form
1,587,637.10/2,190,930.45 = 862,479.02/x - Step 3: Cross multiply
1,587,637.10x = 2,190,930.45 × 862,479.02 - Step 4: Simplify right side
1,587,637.10x = 1,889,631,547,404.16 - Step 5: Solve for x
x = 1,889,631,547,404.16/1,587,637.10 - Step 6: Final answer
x = 1,190,216.30
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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.