Finding the Fourth Proportional to 439,878.13, 607,035.05 and 238,674.13
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Solution
The fourth proportional to 439,878.13, 607,035.05 and 238,674.13 is: 329,372.05
Step by Step Solution
- Step 1: Write the proportion equation
439,878.13 : 607,035.05 = 238,674.13 : x - Step 2: Convert to fraction form
439,878.13/607,035.05 = 238,674.13/x - Step 3: Cross multiply
439,878.13x = 607,035.05 × 238,674.13 - Step 4: Simplify right side
439,878.13x = 144,883,562,438.26 - Step 5: Solve for x
x = 144,883,562,438.26/439,878.13 - Step 6: Final answer
x = 329,372.05
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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.