Finding the Fourth Proportional to 439,622.63, 606,686.12 and 258,358.60
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Solution
The fourth proportional to 439,622.63, 606,686.12 and 258,358.60 is: 356,538.92
Step by Step Solution
- Step 1: Write the proportion equation
439,622.63 : 606,686.12 = 258,358.60 : x - Step 2: Convert to fraction form
439,622.63/606,686.12 = 258,358.60/x - Step 3: Cross multiply
439,622.63x = 606,686.12 × 258,358.60 - Step 4: Simplify right side
439,622.63x = 156,742,576,602.63 - Step 5: Solve for x
x = 156,742,576,602.63/439,622.63 - Step 6: Final answer
x = 356,538.92
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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.