Finding the Fourth Proportional to 553,312.81, 763,604.22 and 338,494.05
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Solution
The fourth proportional to 553,312.81, 763,604.22 and 338,494.05 is: 467,141.70
Step by Step Solution
- Step 1: Write the proportion equation
553,312.81 : 763,604.22 = 338,494.05 : x - Step 2: Convert to fraction form
553,312.81/763,604.22 = 338,494.05/x - Step 3: Cross multiply
553,312.81x = 763,604.22 × 338,494.05 - Step 4: Simplify right side
553,312.81x = 258,475,486,294.24 - Step 5: Solve for x
x = 258,475,486,294.24/553,312.81 - Step 6: Final answer
x = 467,141.70
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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.