Finding the Fourth Proportional to 572,684.22, 790,328.07 and 318,037.50
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Solution
The fourth proportional to 572,684.22, 790,328.07 and 318,037.50 is: 438,904.99
Step by Step Solution
- Step 1: Write the proportion equation
572,684.22 : 790,328.07 = 318,037.50 : x - Step 2: Convert to fraction form
572,684.22/790,328.07 = 318,037.50/x - Step 3: Cross multiply
572,684.22x = 790,328.07 × 318,037.50 - Step 4: Simplify right side
572,684.22x = 251,353,963,562.63 - Step 5: Solve for x
x = 251,353,963,562.63/572,684.22 - Step 6: Final answer
x = 438,904.99
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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.