Finding the Fourth Proportional to 513,381.24, 708,445.80 and 283,923.72
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Solution
The fourth proportional to 513,381.24, 708,445.80 and 283,923.72 is: 391,803.50
Step by Step Solution
- Step 1: Write the proportion equation
513,381.24 : 708,445.80 = 283,923.72 : x - Step 2: Convert to fraction form
513,381.24/708,445.80 = 283,923.72/x - Step 3: Cross multiply
513,381.24x = 708,445.80 × 283,923.72 - Step 4: Simplify right side
513,381.24x = 201,144,566,954.38 - Step 5: Solve for x
x = 201,144,566,954.38/513,381.24 - Step 6: Final answer
x = 391,803.50
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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.