Finding the Fourth Proportional to 573,154.84, 790,972.86 and 318,516.76
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Solution
The fourth proportional to 573,154.84, 790,972.86 and 318,516.76 is: 439,563.79
Step by Step Solution
- Step 1: Write the proportion equation
573,154.84 : 790,972.86 = 318,516.76 : x - Step 2: Convert to fraction form
573,154.84/790,972.86 = 318,516.76/x - Step 3: Cross multiply
573,154.84x = 790,972.86 × 318,516.76 - Step 4: Simplify right side
573,154.84x = 251,938,112,615.13 - Step 5: Solve for x
x = 251,938,112,615.13/573,154.84 - Step 6: Final answer
x = 439,563.79
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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.