Finding the Fourth Proportional to 785,452.32, 1,178,154.94 and 216,868.18
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Solution
The fourth proportional to 785,452.32, 1,178,154.94 and 216,868.18 is: 325,295.77
Step by Step Solution
- Step 1: Write the proportion equation
785,452.32 : 1,178,154.94 = 216,868.18 : x - Step 2: Convert to fraction form
785,452.32/1,178,154.94 = 216,868.18/x - Step 3: Cross multiply
785,452.32x = 1,178,154.94 × 216,868.18 - Step 4: Simplify right side
785,452.32x = 255,504,317,595.81 - Step 5: Solve for x
x = 255,504,317,595.81/785,452.32 - Step 6: Final answer
x = 325,295.77
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1.5x scale
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.