Finding the Fourth Proportional to 505,337.13, 697,285.80 and 290,435.70
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Solution
The fourth proportional to 505,337.13, 697,285.80 and 290,435.70 is: 400,755.61
Step by Step Solution
- Step 1: Write the proportion equation
505,337.13 : 697,285.80 = 290,435.70 : x - Step 2: Convert to fraction form
505,337.13/697,285.80 = 290,435.70/x - Step 3: Cross multiply
505,337.13x = 697,285.80 × 290,435.70 - Step 4: Simplify right side
505,337.13x = 202,516,689,423.06 - Step 5: Solve for x
x = 202,516,689,423.06/505,337.13 - Step 6: Final answer
x = 400,755.61
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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.