Finding the Fourth Proportional to 544,913.40, 817,370.10 and 394,447.80
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Solution
The fourth proportional to 544,913.40, 817,370.10 and 394,447.80 is: 591,671.70
Step by Step Solution
- Step 1: Write the proportion equation
544,913.40 : 817,370.10 = 394,447.80 : x - Step 2: Convert to fraction form
544,913.40/817,370.10 = 394,447.80/x - Step 3: Cross multiply
544,913.40x = 817,370.10 × 394,447.80 - Step 4: Simplify right side
544,913.40x = 322,409,837,730.78 - Step 5: Solve for x
x = 322,409,837,730.78/544,913.40 - Step 6: Final answer
x = 591,671.70
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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.