Finding the Fourth Proportional to 929,704.80, 1,394,557.20 and 817,511.70
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Solution
The fourth proportional to 929,704.80, 1,394,557.20 and 817,511.70 is: 1,226,267.55
Step by Step Solution
- Step 1: Write the proportion equation
929,704.80 : 1,394,557.20 = 817,511.70 : x - Step 2: Convert to fraction form
929,704.80/1,394,557.20 = 817,511.70/x - Step 3: Cross multiply
929,704.80x = 1,394,557.20 × 817,511.70 - Step 4: Simplify right side
929,704.80x = 1,140,066,827,319.24 - Step 5: Solve for x
x = 1,140,066,827,319.24/929,704.80 - Step 6: Final answer
x = 1,226,267.55
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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.