Finding the Fourth Proportional to 615,807.12, 849,572.04 and 357,640.12
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Solution
The fourth proportional to 615,807.12, 849,572.04 and 357,640.12 is: 493,402.94
Step by Step Solution
- Step 1: Write the proportion equation
615,807.12 : 849,572.04 = 357,640.12 : x - Step 2: Convert to fraction form
615,807.12/849,572.04 = 357,640.12/x - Step 3: Cross multiply
615,807.12x = 849,572.04 × 357,640.12 - Step 4: Simplify right side
615,807.12x = 303,841,046,334.25 - Step 5: Solve for x
x = 303,841,046,334.25/615,807.12 - Step 6: Final answer
x = 493,402.94
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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.