Finding the Fourth Proportional to 729,161.68, 1,006,454.36 and 423,306.76
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Solution
The fourth proportional to 729,161.68, 1,006,454.36 and 423,306.76 is: 584,285.96
Step by Step Solution
- Step 1: Write the proportion equation
729,161.68 : 1,006,454.36 = 423,306.76 : x - Step 2: Convert to fraction form
729,161.68/1,006,454.36 = 423,306.76/x - Step 3: Cross multiply
729,161.68x = 1,006,454.36 × 423,306.76 - Step 4: Simplify right side
729,161.68x = 426,038,934,219.47 - Step 5: Solve for x
x = 426,038,934,219.47/729,161.68 - Step 6: Final answer
x = 584,285.96
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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.