Finding the Fourth Proportional to 975,783.20, 1,345,955.99 and 782,654.31
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Solution
The fourth proportional to 975,783.20, 1,345,955.99 and 782,654.31 is: 1,079,561.79
Step by Step Solution
- Step 1: Write the proportion equation
975,783.20 : 1,345,955.99 = 782,654.31 : x - Step 2: Convert to fraction form
975,783.20/1,345,955.99 = 782,654.31/x - Step 3: Cross multiply
975,783.20x = 1,345,955.99 × 782,654.31 - Step 4: Simplify right side
975,783.20x = 1,053,418,252,730.55 - Step 5: Solve for x
x = 1,053,418,252,730.55/975,783.20 - Step 6: Final answer
x = 1,079,561.79
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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.