Finding the Fourth Proportional to 689,414.15, 951,002.99 and 413,700.68
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Solution
The fourth proportional to 689,414.15, 951,002.99 and 413,700.68 is: 570,673.79
Step by Step Solution
- Step 1: Write the proportion equation
689,414.15 : 951,002.99 = 413,700.68 : x - Step 2: Convert to fraction form
689,414.15/951,002.99 = 413,700.68/x - Step 3: Cross multiply
689,414.15x = 951,002.99 × 413,700.68 - Step 4: Simplify right side
689,414.15x = 393,430,583,645.03 - Step 5: Solve for x
x = 393,430,583,645.03/689,414.15 - Step 6: Final answer
x = 570,673.79
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1.5x scale
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.