Finding the Fourth Proportional to 614,345.99, 847,801.42 and 342,431.15
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Solution
The fourth proportional to 614,345.99, 847,801.42 and 342,431.15 is: 472,557.19
Step by Step Solution
- Step 1: Write the proportion equation
614,345.99 : 847,801.42 = 342,431.15 : x - Step 2: Convert to fraction form
614,345.99/847,801.42 = 342,431.15/x - Step 3: Cross multiply
614,345.99x = 847,801.42 × 342,431.15 - Step 4: Simplify right side
614,345.99x = 290,313,610,127.15 - Step 5: Solve for x
x = 290,313,610,127.15/614,345.99 - Step 6: Final answer
x = 472,557.19
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1.5x scale
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.