Finding the Fourth Proportional to 621,408.70, 857,535.86 and 349,476.52
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Solution
The fourth proportional to 621,408.70, 857,535.86 and 349,476.52 is: 482,273.02
Step by Step Solution
- Step 1: Write the proportion equation
621,408.70 : 857,535.86 = 349,476.52 : x - Step 2: Convert to fraction form
621,408.70/857,535.86 = 349,476.52/x - Step 3: Cross multiply
621,408.70x = 857,535.86 × 349,476.52 - Step 4: Simplify right side
621,408.70x = 299,688,648,128.01 - Step 5: Solve for x
x = 299,688,648,128.01/621,408.70 - Step 6: Final answer
x = 482,273.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.