Finding the Fourth Proportional to 458,537.70, 687,806.55 and 411,881.70
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Solution
The fourth proportional to 458,537.70, 687,806.55 and 411,881.70 is: 617,822.55
Step by Step Solution
- Step 1: Write the proportion equation
458,537.70 : 687,806.55 = 411,881.70 : x - Step 2: Convert to fraction form
458,537.70/687,806.55 = 411,881.70/x - Step 3: Cross multiply
458,537.70x = 687,806.55 × 411,881.70 - Step 4: Simplify right side
458,537.70x = 283,294,931,085.14 - Step 5: Solve for x
x = 283,294,931,085.14/458,537.70 - Step 6: Final answer
x = 617,822.55
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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.