Finding the Fourth Proportional to 472,894.80, 709,342.20 and 429,349.20
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Solution
The fourth proportional to 472,894.80, 709,342.20 and 429,349.20 is: 644,023.80
Step by Step Solution
- Step 1: Write the proportion equation
472,894.80 : 709,342.20 = 429,349.20 : x - Step 2: Convert to fraction form
472,894.80/709,342.20 = 429,349.20/x - Step 3: Cross multiply
472,894.80x = 709,342.20 × 429,349.20 - Step 4: Simplify right side
472,894.80x = 304,555,506,096.24 - Step 5: Solve for x
x = 304,555,506,096.24/472,894.80 - Step 6: Final answer
x = 644,023.80
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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.