Finding the Fourth Proportional to 480,994.70, 663,483.48 and 317,652.71
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Solution
The fourth proportional to 480,994.70, 663,483.48 and 317,652.71 is: 438,169.75
Step by Step Solution
- Step 1: Write the proportion equation
480,994.70 : 663,483.48 = 317,652.71 : x - Step 2: Convert to fraction form
480,994.70/663,483.48 = 317,652.71/x - Step 3: Cross multiply
480,994.70x = 663,483.48 × 317,652.71 - Step 4: Simplify right side
480,994.70x = 210,757,325,579.11 - Step 5: Solve for x
x = 210,757,325,579.11/480,994.70 - Step 6: Final answer
x = 438,169.75
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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.