Finding the Fourth Proportional to 811,746.66, 1,217,423.17 and 338,173.68
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Solution
The fourth proportional to 811,746.66, 1,217,423.17 and 338,173.68 is: 507,178.53
Step by Step Solution
- Step 1: Write the proportion equation
811,746.66 : 1,217,423.17 = 338,173.68 : x - Step 2: Convert to fraction form
811,746.66/1,217,423.17 = 338,173.68/x - Step 3: Cross multiply
811,746.66x = 1,217,423.17 × 338,173.68 - Step 4: Simplify right side
811,746.66x = 411,700,476,601.99 - Step 5: Solve for x
x = 411,700,476,601.99/811,746.66 - Step 6: Final answer
x = 507,178.53
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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.