Finding the Fourth Proportional to 688,300.43, 1,032,470.99 and 328,509.19
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Solution
The fourth proportional to 688,300.43, 1,032,470.99 and 328,509.19 is: 492,773.50
Step by Step Solution
- Step 1: Write the proportion equation
688,300.43 : 1,032,470.99 = 328,509.19 : x - Step 2: Convert to fraction form
688,300.43/1,032,470.99 = 328,509.19/x - Step 3: Cross multiply
688,300.43x = 1,032,470.99 × 328,509.19 - Step 4: Simplify right side
688,300.43x = 339,176,206,863.49 - Step 5: Solve for x
x = 339,176,206,863.49/688,300.43 - Step 6: Final answer
x = 492,773.50
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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.