Finding the Fourth Proportional to 905,675.40, 1,249,833.06 and 497,777.13
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Solution
The fourth proportional to 905,675.40, 1,249,833.06 and 497,777.13 is: 686,932.99
Step by Step Solution
- Step 1: Write the proportion equation
905,675.40 : 1,249,833.06 = 497,777.13 : x - Step 2: Convert to fraction form
905,675.40/1,249,833.06 = 497,777.13/x - Step 3: Cross multiply
905,675.40x = 1,249,833.06 × 497,777.13 - Step 4: Simplify right side
905,675.40x = 622,138,313,585.92 - Step 5: Solve for x
x = 622,138,313,585.92/905,675.40 - Step 6: Final answer
x = 686,932.99
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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.