Finding the Fourth Proportional to 811,855.08, 1,120,911.30 and 506,053.80
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Solution
The fourth proportional to 811,855.08, 1,120,911.30 and 506,053.80 is: 698,697.88
Step by Step Solution
- Step 1: Write the proportion equation
811,855.08 : 1,120,911.30 = 506,053.80 : x - Step 2: Convert to fraction form
811,855.08/1,120,911.30 = 506,053.80/x - Step 3: Cross multiply
811,855.08x = 1,120,911.30 × 506,053.80 - Step 4: Simplify right side
811,855.08x = 567,241,422,827.94 - Step 5: Solve for x
x = 567,241,422,827.94/811,855.08 - Step 6: Final answer
x = 698,697.88
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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.