Finding the Fourth Proportional to 570,390.44, 786,908.70 and 328,543.79
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Solution
The fourth proportional to 570,390.44, 786,908.70 and 328,543.79 is: 453,257.89
Step by Step Solution
- Step 1: Write the proportion equation
570,390.44 : 786,908.70 = 328,543.79 : x - Step 2: Convert to fraction form
570,390.44/786,908.70 = 328,543.79/x - Step 3: Cross multiply
570,390.44x = 786,908.70 × 328,543.79 - Step 4: Simplify right side
570,390.44x = 258,533,962,747.43 - Step 5: Solve for x
x = 258,533,962,747.43/570,390.44 - Step 6: Final answer
x = 453,257.89
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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.