Finding the Fourth Proportional to 486,923.79, 671,941.94 and 272,065.62
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Solution
The fourth proportional to 486,923.79, 671,941.94 and 272,065.62 is: 375,443.35
Step by Step Solution
- Step 1: Write the proportion equation
486,923.79 : 671,941.94 = 272,065.62 : x - Step 2: Convert to fraction form
486,923.79/671,941.94 = 272,065.62/x - Step 3: Cross multiply
486,923.79x = 671,941.94 × 272,065.62 - Step 4: Simplify right side
486,923.79x = 182,812,300,510.10 - Step 5: Solve for x
x = 182,812,300,510.10/486,923.79 - Step 6: Final answer
x = 375,443.35
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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.