Finding the Fourth Proportional to 411,465.52, 617,193.80 and 312,235.12
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Solution
The fourth proportional to 411,465.52, 617,193.80 and 312,235.12 is: 468,349.28
Step by Step Solution
- Step 1: Write the proportion equation
411,465.52 : 617,193.80 = 312,235.12 : x - Step 2: Convert to fraction form
411,465.52/617,193.80 = 312,235.12/x - Step 3: Cross multiply
411,465.52x = 617,193.80 × 312,235.12 - Step 4: Simplify right side
411,465.52x = 192,709,580,206.26 - Step 5: Solve for x
x = 192,709,580,206.26/411,465.52 - Step 6: Final answer
x = 468,349.28
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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.