Finding the Fourth Proportional to 506,890.90, 699,431.52 and 291,988.99
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Solution
The fourth proportional to 506,890.90, 699,431.52 and 291,988.99 is: 402,899.92
Step by Step Solution
- Step 1: Write the proportion equation
506,890.90 : 699,431.52 = 291,988.99 : x - Step 2: Convert to fraction form
506,890.90/699,431.52 = 291,988.99/x - Step 3: Cross multiply
506,890.90x = 699,431.52 × 291,988.99 - Step 4: Simplify right side
506,890.90x = 204,226,303,098.97 - Step 5: Solve for x
x = 204,226,303,098.97/506,890.90 - Step 6: Final answer
x = 402,899.92
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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.