Finding the Fourth Proportional to 390,860.24, 586,391.44 and 228,891.07
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Solution
The fourth proportional to 390,860.24, 586,391.44 and 228,891.07 is: 343,395.79
Step by Step Solution
- Step 1: Write the proportion equation
390,860.24 : 586,391.44 = 228,891.07 : x - Step 2: Convert to fraction form
390,860.24/586,391.44 = 228,891.07/x - Step 3: Cross multiply
390,860.24x = 586,391.44 × 228,891.07 - Step 4: Simplify right side
390,860.24x = 134,219,762,075.68 - Step 5: Solve for x
x = 134,219,762,075.68/390,860.24 - Step 6: Final answer
x = 343,395.79
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.