Finding the Fourth Proportional to 521,681.76, 720,255.36 and 358,609.44
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Solution
The fourth proportional to 521,681.76, 720,255.36 and 358,609.44 is: 495,110.99
Step by Step Solution
- Step 1: Write the proportion equation
521,681.76 : 720,255.36 = 358,609.44 : x - Step 2: Convert to fraction form
521,681.76/720,255.36 = 358,609.44/x - Step 3: Cross multiply
521,681.76x = 720,255.36 × 358,609.44 - Step 4: Simplify right side
521,681.76x = 258,290,371,306.60 - Step 5: Solve for x
x = 258,290,371,306.60/521,681.76 - Step 6: Final answer
x = 495,110.99
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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.