Finding the Fourth Proportional to 399,616.18, 596,509.19 and 349,170.28
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Solution
The fourth proportional to 399,616.18, 596,509.19 and 349,170.28 is: 521,208.33
Step by Step Solution
- Step 1: Write the proportion equation
399,616.18 : 596,509.19 = 349,170.28 : x - Step 2: Convert to fraction form
399,616.18/596,509.19 = 349,170.28/x - Step 3: Cross multiply
399,616.18x = 596,509.19 × 349,170.28 - Step 4: Simplify right side
399,616.18x = 208,283,280,894.87 - Step 5: Solve for x
x = 208,283,280,894.87/399,616.18 - Step 6: Final answer
x = 521,208.33
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.