Finding the Fourth Proportional to 753,658.20, 1,129,175.10 and 487,281.60
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Solution
The fourth proportional to 753,658.20, 1,129,175.10 and 487,281.60 is: 730,073.99
Step by Step Solution
- Step 1: Write the proportion equation
753,658.20 : 1,129,175.10 = 487,281.60 : x - Step 2: Convert to fraction form
753,658.20/1,129,175.10 = 487,281.60/x - Step 3: Cross multiply
753,658.20x = 1,129,175.10 × 487,281.60 - Step 4: Simplify right side
753,658.20x = 550,226,249,408.16 - Step 5: Solve for x
x = 550,226,249,408.16/753,658.20 - Step 6: Final answer
x = 730,073.99
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.