Finding the Fourth Proportional to 455,267.70, 683,463.15 and 286,787.70
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Solution
The fourth proportional to 455,267.70, 683,463.15 and 286,787.70 is: 430,535.32
Step by Step Solution
- Step 1: Write the proportion equation
455,267.70 : 683,463.15 = 286,787.70 : x - Step 2: Convert to fraction form
455,267.70/683,463.15 = 286,787.70/x - Step 3: Cross multiply
455,267.70x = 683,463.15 × 286,787.70 - Step 4: Simplify right side
455,267.70x = 196,008,824,823.26 - Step 5: Solve for x
x = 196,008,824,823.26/455,267.70 - Step 6: Final answer
x = 430,535.32
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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.