Finding the Fourth Proportional to 752,781.08, 1,038,838.88 and 408,616.79
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Solution
The fourth proportional to 752,781.08, 1,038,838.88 and 408,616.79 is: 563,891.70
Step by Step Solution
- Step 1: Write the proportion equation
752,781.08 : 1,038,838.88 = 408,616.79 : x - Step 2: Convert to fraction form
752,781.08/1,038,838.88 = 408,616.79/x - Step 3: Cross multiply
752,781.08x = 1,038,838.88 × 408,616.79 - Step 4: Simplify right side
752,781.08x = 424,487,001,235.52 - Step 5: Solve for x
x = 424,487,001,235.52/752,781.08 - Step 6: Final answer
x = 563,891.70
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.