Finding the Fourth Proportional to 499,038.99, 688,687.97 and 278,281.32
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Solution
The fourth proportional to 499,038.99, 688,687.97 and 278,281.32 is: 384,036.12
Step by Step Solution
- Step 1: Write the proportion equation
499,038.99 : 688,687.97 = 278,281.32 : x - Step 2: Convert to fraction form
499,038.99/688,687.97 = 278,281.32/x - Step 3: Cross multiply
499,038.99x = 688,687.97 × 278,281.32 - Step 4: Simplify right side
499,038.99x = 191,648,995,968.31 - Step 5: Solve for x
x = 191,648,995,968.31/499,038.99 - Step 6: Final answer
x = 384,036.12
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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.