Finding the Fourth Proportional to 747,600.40, 1,031,688.66 and 408,068.68
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Solution
The fourth proportional to 747,600.40, 1,031,688.66 and 408,068.68 is: 563,134.84
Step by Step Solution
- Step 1: Write the proportion equation
747,600.40 : 1,031,688.66 = 408,068.68 : x - Step 2: Convert to fraction form
747,600.40/1,031,688.66 = 408,068.68/x - Step 3: Cross multiply
747,600.40x = 1,031,688.66 × 408,068.68 - Step 4: Simplify right side
747,600.40x = 420,999,829,657.17 - Step 5: Solve for x
x = 420,999,829,657.17/747,600.40 - Step 6: Final answer
x = 563,134.84
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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.