Finding the Fourth Proportional to 905,731.74, 1,249,719.03 and 503,315.10
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Solution
The fourth proportional to 905,731.74, 1,249,719.03 and 503,315.10 is: 694,468.83
Step by Step Solution
- Step 1: Write the proportion equation
905,731.74 : 1,249,719.03 = 503,315.10 : x - Step 2: Convert to fraction form
905,731.74/1,249,719.03 = 503,315.10/x - Step 3: Cross multiply
905,731.74x = 1,249,719.03 × 503,315.10 - Step 4: Simplify right side
905,731.74x = 629,002,458,556.35 - Step 5: Solve for x
x = 629,002,458,556.35/905,731.74 - Step 6: Final answer
x = 694,468.83
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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.