Finding the Fourth Proportional to 981,619.68, 1,357,050.24 and 972,638.40
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Solution
The fourth proportional to 981,619.68, 1,357,050.24 and 972,638.40 is: 1,344,633.98
Step by Step Solution
- Step 1: Write the proportion equation
981,619.68 : 1,357,050.24 = 972,638.40 : x - Step 2: Convert to fraction form
981,619.68/1,357,050.24 = 972,638.40/x - Step 3: Cross multiply
981,619.68x = 1,357,050.24 × 972,638.40 - Step 4: Simplify right side
981,619.68x = 1,319,919,174,153.22 - Step 5: Solve for x
x = 1,319,919,174,153.22/981,619.68 - Step 6: Final answer
x = 1,344,633.98
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.