Finding the Fourth Proportional to 861,346.37, 1,291,068.11 and 355,628.54
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Solution
The fourth proportional to 861,346.37, 1,291,068.11 and 355,628.54 is: 533,049.99
Step by Step Solution
- Step 1: Write the proportion equation
861,346.37 : 1,291,068.11 = 355,628.54 : x - Step 2: Convert to fraction form
861,346.37/1,291,068.11 = 355,628.54/x - Step 3: Cross multiply
861,346.37x = 1,291,068.11 × 355,628.54 - Step 4: Simplify right side
861,346.37x = 459,140,671,116.60 - Step 5: Solve for x
x = 459,140,671,116.60/861,346.37 - Step 6: Final answer
x = 533,049.99
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.