Finding the Fourth Proportional to 472,865.80, 708,132.30 and 314,235.40
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Solution
The fourth proportional to 472,865.80, 708,132.30 and 314,235.40 is: 470,577.99
Step by Step Solution
- Step 1: Write the proportion equation
472,865.80 : 708,132.30 = 314,235.40 : x - Step 2: Convert to fraction form
472,865.80/708,132.30 = 314,235.40/x - Step 3: Cross multiply
472,865.80x = 708,132.30 × 314,235.40 - Step 4: Simplify right side
472,865.80x = 222,520,236,543.42 - Step 5: Solve for x
x = 222,520,236,543.42/472,865.80 - Step 6: Final answer
x = 470,577.99
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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.