Finding the Fourth Proportional to 736,332.80, 1,103,721.60 and 420,108.80
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Solution
The fourth proportional to 736,332.80, 1,103,721.60 and 420,108.80 is: 629,719.55
Step by Step Solution
- Step 1: Write the proportion equation
736,332.80 : 1,103,721.60 = 420,108.80 : x - Step 2: Convert to fraction form
736,332.80/1,103,721.60 = 420,108.80/x - Step 3: Cross multiply
736,332.80x = 1,103,721.60 × 420,108.80 - Step 4: Simplify right side
736,332.80x = 463,683,156,910.08 - Step 5: Solve for x
x = 463,683,156,910.08/736,332.80 - Step 6: Final answer
x = 629,719.55
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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.