Finding the Fourth Proportional to 535,345.68, 738,838.74 and 320,485.68
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Solution
The fourth proportional to 535,345.68, 738,838.74 and 320,485.68 is: 442,307.18
Step by Step Solution
- Step 1: Write the proportion equation
535,345.68 : 738,838.74 = 320,485.68 : x - Step 2: Convert to fraction form
535,345.68/738,838.74 = 320,485.68/x - Step 3: Cross multiply
535,345.68x = 738,838.74 × 320,485.68 - Step 4: Simplify right side
535,345.68x = 236,787,235,999.24 - Step 5: Solve for x
x = 236,787,235,999.24/535,345.68 - Step 6: Final answer
x = 442,307.18
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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.