Finding the Fourth Proportional to 689,387.00, 951,354.01 and 387,581.00
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Solution
The fourth proportional to 689,387.00, 951,354.01 and 387,581.00 is: 534,861.75
Step by Step Solution
- Step 1: Write the proportion equation
689,387.00 : 951,354.01 = 387,581.00 : x - Step 2: Convert to fraction form
689,387.00/951,354.01 = 387,581.00/x - Step 3: Cross multiply
689,387.00x = 951,354.01 × 387,581.00 - Step 4: Simplify right side
689,387.00x = 368,726,732,824.09 - Step 5: Solve for x
x = 368,726,732,824.09/689,387.00 - Step 6: Final answer
x = 534,861.75
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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.