Finding the Fourth Proportional to 553,073.09, 829,609.63 and 316,249.65
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Solution
The fourth proportional to 553,073.09, 829,609.63 and 316,249.65 is: 474,374.48
Step by Step Solution
- Step 1: Write the proportion equation
553,073.09 : 829,609.63 = 316,249.65 : x - Step 2: Convert to fraction form
553,073.09/829,609.63 = 316,249.65/x - Step 3: Cross multiply
553,073.09x = 829,609.63 × 316,249.65 - Step 4: Simplify right side
553,073.09x = 262,363,754,333.51 - Step 5: Solve for x
x = 262,363,754,333.51/553,073.09 - Step 6: Final answer
x = 474,374.48
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Similar ratio
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1.5x scale
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.