Finding the Fourth Proportional to 470,658.87, 705,913.95 and 391,207.17
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Solution
The fourth proportional to 470,658.87, 705,913.95 and 391,207.17 is: 586,748.95
Step by Step Solution
- Step 1: Write the proportion equation
470,658.87 : 705,913.95 = 391,207.17 : x - Step 2: Convert to fraction form
470,658.87/705,913.95 = 391,207.17/x - Step 3: Cross multiply
470,658.87x = 705,913.95 × 391,207.17 - Step 4: Simplify right side
470,658.87x = 276,158,598,643.02 - Step 5: Solve for x
x = 276,158,598,643.02/470,658.87 - Step 6: Final answer
x = 586,748.95
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.