Finding the Fourth Proportional to 478,834.68, 714,027.84 and 455,288.88
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Solution
The fourth proportional to 478,834.68, 714,027.84 and 455,288.88 is: 678,916.86
Step by Step Solution
- Step 1: Write the proportion equation
478,834.68 : 714,027.84 = 455,288.88 : x - Step 2: Convert to fraction form
478,834.68/714,027.84 = 455,288.88/x - Step 3: Cross multiply
478,834.68x = 714,027.84 × 455,288.88 - Step 4: Simplify right side
478,834.68x = 325,088,935,562.42 - Step 5: Solve for x
x = 325,088,935,562.42/478,834.68 - Step 6: Final answer
x = 678,916.86
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These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.