Finding the Fourth Proportional to 812,854.12, 1,219,084.26 and 339,282.76
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Solution
The fourth proportional to 812,854.12, 1,219,084.26 and 339,282.76 is: 508,841.95
Step by Step Solution
- Step 1: Write the proportion equation
812,854.12 : 1,219,084.26 = 339,282.76 : x - Step 2: Convert to fraction form
812,854.12/1,219,084.26 = 339,282.76/x - Step 3: Cross multiply
812,854.12x = 1,219,084.26 × 339,282.76 - Step 4: Simplify right side
812,854.12x = 413,614,272,405.36 - Step 5: Solve for x
x = 413,614,272,405.36/812,854.12 - Step 6: Final answer
x = 508,841.95
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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.