Finding the Fourth Proportional to 520,381.97, 781,252.76 and 417,854.05
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Solution
The fourth proportional to 520,381.97, 781,252.76 and 417,854.05 is: 627,326.94
Step by Step Solution
- Step 1: Write the proportion equation
520,381.97 : 781,252.76 = 417,854.05 : x - Step 2: Convert to fraction form
520,381.97/781,252.76 = 417,854.05/x - Step 3: Cross multiply
520,381.97x = 781,252.76 × 417,854.05 - Step 4: Simplify right side
520,381.97x = 326,449,628,931.18 - Step 5: Solve for x
x = 326,449,628,931.18/520,381.97 - Step 6: Final answer
x = 627,326.94
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.