Finding the Fourth Proportional to 858,312.10, 1,288,051.35 and 479,232.10
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Solution
The fourth proportional to 858,312.10, 1,288,051.35 and 479,232.10 is: 719,173.78
Step by Step Solution
- Step 1: Write the proportion equation
858,312.10 : 1,288,051.35 = 479,232.10 : x - Step 2: Convert to fraction form
858,312.10/1,288,051.35 = 479,232.10/x - Step 3: Cross multiply
858,312.10x = 1,288,051.35 × 479,232.10 - Step 4: Simplify right side
858,312.10x = 617,275,553,368.34 - Step 5: Solve for x
x = 617,275,553,368.34/858,312.10 - Step 6: Final answer
x = 719,173.78
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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.