Finding the Fourth Proportional to 613,484.79, 846,389.91 and 355,220.76
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Solution
The fourth proportional to 613,484.79, 846,389.91 and 355,220.76 is: 490,077.79
Step by Step Solution
- Step 1: Write the proportion equation
613,484.79 : 846,389.91 = 355,220.76 : x - Step 2: Convert to fraction form
613,484.79/846,389.91 = 355,220.76/x - Step 3: Cross multiply
613,484.79x = 846,389.91 × 355,220.76 - Step 4: Simplify right side
613,484.79x = 300,655,267,086.53 - Step 5: Solve for x
x = 300,655,267,086.53/613,484.79 - Step 6: Final answer
x = 490,077.79
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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.