Finding the Fourth Proportional to 811,457.06, 1,217,296.35 and 338,031.68
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Solution
The fourth proportional to 811,457.06, 1,217,296.35 and 338,031.68 is: 507,093.66
Step by Step Solution
- Step 1: Write the proportion equation
811,457.06 : 1,217,296.35 = 338,031.68 : x - Step 2: Convert to fraction form
811,457.06/1,217,296.35 = 338,031.68/x - Step 3: Cross multiply
811,457.06x = 1,217,296.35 × 338,031.68 - Step 4: Simplify right side
811,457.06x = 411,484,730,248.37 - Step 5: Solve for x
x = 411,484,730,248.37/811,457.06 - Step 6: Final answer
x = 507,093.66
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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.