Finding the Fourth Proportional to 862,880.24, 1,190,780.65 and 480,931.62
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Solution
The fourth proportional to 862,880.24, 1,190,780.65 and 480,931.62 is: 663,688.93
Step by Step Solution
- Step 1: Write the proportion equation
862,880.24 : 1,190,780.65 = 480,931.62 : x - Step 2: Convert to fraction form
862,880.24/1,190,780.65 = 480,931.62/x - Step 3: Cross multiply
862,880.24x = 1,190,780.65 × 480,931.62 - Step 4: Simplify right side
862,880.24x = 572,684,067,069.15 - Step 5: Solve for x
x = 572,684,067,069.15/862,880.24 - Step 6: Final answer
x = 663,688.93
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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.