Finding the Fourth Proportional to 691,447.84, 1,038,139.74 and 354,725.98
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Solution
The fourth proportional to 691,447.84, 1,038,139.74 and 354,725.98 is: 532,585.56
Step by Step Solution
- Step 1: Write the proportion equation
691,447.84 : 1,038,139.74 = 354,725.98 : x - Step 2: Convert to fraction form
691,447.84/1,038,139.74 = 354,725.98/x - Step 3: Cross multiply
691,447.84x = 1,038,139.74 × 354,725.98 - Step 4: Simplify right side
691,447.84x = 368,255,136,648.45 - Step 5: Solve for x
x = 368,255,136,648.45/691,447.84 - Step 6: Final answer
x = 532,585.56
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.