Finding the Fourth Proportional to 521,925.74, 720,604.50 and 400,850.68
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Solution
The fourth proportional to 521,925.74, 720,604.50 and 400,850.68 is: 553,440.43
Step by Step Solution
- Step 1: Write the proportion equation
521,925.74 : 720,604.50 = 400,850.68 : x - Step 2: Convert to fraction form
521,925.74/720,604.50 = 400,850.68/x - Step 3: Cross multiply
521,925.74x = 720,604.50 × 400,850.68 - Step 4: Simplify right side
521,925.74x = 288,854,803,836.06 - Step 5: Solve for x
x = 288,854,803,836.06/521,925.74 - Step 6: Final answer
x = 553,440.43
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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.