Finding the Fourth Proportional to 570,899.91, 787,889.87 and 316,274.79
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Solution
The fourth proportional to 570,899.91, 787,889.87 and 316,274.79 is: 436,485.80
Step by Step Solution
- Step 1: Write the proportion equation
570,899.91 : 787,889.87 = 316,274.79 : x - Step 2: Convert to fraction form
570,899.91/787,889.87 = 316,274.79/x - Step 3: Cross multiply
570,899.91x = 787,889.87 × 316,274.79 - Step 4: Simplify right side
570,899.91x = 249,189,701,596.00 - Step 5: Solve for x
x = 249,189,701,596.00/570,899.91 - Step 6: Final answer
x = 436,485.80
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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.