Finding the Fourth Proportional to 499,962.18, 689,947.36 and 282,216.68
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Solution
The fourth proportional to 499,962.18, 689,947.36 and 282,216.68 is: 389,458.77
Step by Step Solution
- Step 1: Write the proportion equation
499,962.18 : 689,947.36 = 282,216.68 : x - Step 2: Convert to fraction form
499,962.18/689,947.36 = 282,216.68/x - Step 3: Cross multiply
499,962.18x = 689,947.36 × 282,216.68 - Step 4: Simplify right side
499,962.18x = 194,714,654,480.20 - Step 5: Solve for x
x = 194,714,654,480.20/499,962.18 - Step 6: Final answer
x = 389,458.77
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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.