Finding the Fourth Proportional to 663,750.74, 915,974.28 and 361,944.74
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Solution
The fourth proportional to 663,750.74, 915,974.28 and 361,944.74 is: 499,482.79
Step by Step Solution
- Step 1: Write the proportion equation
663,750.74 : 915,974.28 = 361,944.74 : x - Step 2: Convert to fraction form
663,750.74/915,974.28 = 361,944.74/x - Step 3: Cross multiply
663,750.74x = 915,974.28 × 361,944.74 - Step 4: Simplify right side
663,750.74x = 331,532,072,621.29 - Step 5: Solve for x
x = 331,532,072,621.29/663,750.74 - Step 6: Final answer
x = 499,482.79
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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.