Finding the Fourth Proportional to 457,430.19, 686,150.75 and 217,569.59
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Solution
The fourth proportional to 457,430.19, 686,150.75 and 217,569.59 is: 326,356.99
Step by Step Solution
- Step 1: Write the proportion equation
457,430.19 : 686,150.75 = 217,569.59 : x - Step 2: Convert to fraction form
457,430.19/686,150.75 = 217,569.59/x - Step 3: Cross multiply
457,430.19x = 686,150.75 × 217,569.59 - Step 4: Simplify right side
457,430.19x = 149,285,539,677.70 - Step 5: Solve for x
x = 149,285,539,677.70/457,430.19 - Step 6: Final answer
x = 326,356.99
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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.