Finding the Fourth Proportional to 553,633.70, 829,138.35 and 553,633.70
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Solution
The fourth proportional to 553,633.70, 829,138.35 and 553,633.70 is: 829,138.35
Step by Step Solution
- Step 1: Write the proportion equation
553,633.70 : 829,138.35 = 553,633.70 : x - Step 2: Convert to fraction form
553,633.70/829,138.35 = 553,633.70/x - Step 3: Cross multiply
553,633.70x = 829,138.35 × 553,633.70 - Step 4: Simplify right side
553,633.70x = 459,038,932,522.40 - Step 5: Solve for x
x = 459,038,932,522.40/553,633.70 - Step 6: Final answer
x = 829,138.35
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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.