Finding the Fourth Proportional to 1,980,873.63, 2,727,484.70 and 1,547,043.39
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Solution
The fourth proportional to 1,980,873.63, 2,727,484.70 and 1,547,043.39 is: 2,130,139.50
Step by Step Solution
- Step 1: Write the proportion equation
1,980,873.63 : 2,727,484.70 = 1,547,043.39 : x - Step 2: Convert to fraction form
1,980,873.63/2,727,484.70 = 1,547,043.39/x - Step 3: Cross multiply
1,980,873.63x = 2,727,484.70 × 1,547,043.39 - Step 4: Simplify right side
1,980,873.63x = 4,219,537,168,725.92 - Step 5: Solve for x
x = 4,219,537,168,725.92/1,980,873.63 - Step 6: Final answer
x = 2,130,139.50
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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.