Finding the Fourth Proportional to 623,386.26, 859,874.13 and 432,329.94
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Solution
The fourth proportional to 623,386.26, 859,874.13 and 432,329.94 is: 596,338.67
Step by Step Solution
- Step 1: Write the proportion equation
623,386.26 : 859,874.13 = 432,329.94 : x - Step 2: Convert to fraction form
623,386.26/859,874.13 = 432,329.94/x - Step 3: Cross multiply
623,386.26x = 859,874.13 × 432,329.94 - Step 4: Simplify right side
623,386.26x = 371,749,331,030.45 - Step 5: Solve for x
x = 371,749,331,030.45/623,386.26 - Step 6: Final answer
x = 596,338.67
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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.