Finding the Fourth Proportional to 645,534.16, 967,945.75 and 266,368.70
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Solution
The fourth proportional to 645,534.16, 967,945.75 and 266,368.70 is: 399,406.37
Step by Step Solution
- Step 1: Write the proportion equation
645,534.16 : 967,945.75 = 266,368.70 : x - Step 2: Convert to fraction form
645,534.16/967,945.75 = 266,368.70/x - Step 3: Cross multiply
645,534.16x = 967,945.75 × 266,368.70 - Step 4: Simplify right side
645,534.16x = 257,830,452,851.97 - Step 5: Solve for x
x = 257,830,452,851.97/645,534.16 - Step 6: Final answer
x = 399,406.37
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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.