Finding the Fourth Proportional to 905,471.46, 1,249,574.04 and 497,584.62
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Solution
The fourth proportional to 905,471.46, 1,249,574.04 and 497,584.62 is: 686,679.65
Step by Step Solution
- Step 1: Write the proportion equation
905,471.46 : 1,249,574.04 = 497,584.62 : x - Step 2: Convert to fraction form
905,471.46/1,249,574.04 = 497,584.62/x - Step 3: Cross multiply
905,471.46x = 1,249,574.04 × 497,584.62 - Step 4: Simplify right side
905,471.46x = 621,768,823,855.27 - Step 5: Solve for x
x = 621,768,823,855.27/905,471.46 - Step 6: Final answer
x = 686,679.65
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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.