Finding the Fourth Proportional to 663,733.71, 915,950.84 and 361,927.71
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Solution
The fourth proportional to 663,733.71, 915,950.84 and 361,927.71 is: 499,459.32
Step by Step Solution
- Step 1: Write the proportion equation
663,733.71 : 915,950.84 = 361,927.71 : x - Step 2: Convert to fraction form
663,733.71/915,950.84 = 361,927.71/x - Step 3: Cross multiply
663,733.71x = 915,950.84 × 361,927.71 - Step 4: Simplify right side
663,733.71x = 331,507,988,184.14 - Step 5: Solve for x
x = 331,507,988,184.14/663,733.71 - Step 6: Final answer
x = 499,459.32
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1.5x scale
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.