Finding the Fourth Proportional to 712,983.42, 983,917.12 and 411,177.42
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Solution
The fourth proportional to 712,983.42, 983,917.12 and 411,177.42 is: 567,424.84
Step by Step Solution
- Step 1: Write the proportion equation
712,983.42 : 983,917.12 = 411,177.42 : x - Step 2: Convert to fraction form
712,983.42/983,917.12 = 411,177.42/x - Step 3: Cross multiply
712,983.42x = 983,917.12 × 411,177.42 - Step 4: Simplify right side
712,983.42x = 404,564,502,895.43 - Step 5: Solve for x
x = 404,564,502,895.43/712,983.42 - Step 6: Final answer
x = 567,424.84
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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.