Finding the Fourth Proportional to 709,533.68, 979,159.19 and 387,250.88
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Solution
The fourth proportional to 709,533.68, 979,159.19 and 387,250.88 is: 534,407.69
Step by Step Solution
- Step 1: Write the proportion equation
709,533.68 : 979,159.19 = 387,250.88 : x - Step 2: Convert to fraction form
709,533.68/979,159.19 = 387,250.88/x - Step 3: Cross multiply
709,533.68x = 979,159.19 × 387,250.88 - Step 4: Simplify right side
709,533.68x = 379,180,251,155.54 - Step 5: Solve for x
x = 379,180,251,155.54/709,533.68 - Step 6: Final answer
x = 534,407.69
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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.