Finding the Fourth Proportional to 439,963.74, 607,149.97 and 238,759.74
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Solution
The fourth proportional to 439,963.74, 607,149.97 and 238,759.74 is: 329,488.44
Step by Step Solution
- Step 1: Write the proportion equation
439,963.74 : 607,149.97 = 238,759.74 : x - Step 2: Convert to fraction form
439,963.74/607,149.97 = 238,759.74/x - Step 3: Cross multiply
439,963.74x = 607,149.97 × 238,759.74 - Step 4: Simplify right side
439,963.74x = 144,962,968,381.31 - Step 5: Solve for x
x = 144,962,968,381.31/439,963.74 - Step 6: Final answer
x = 329,488.44
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1.5x scale
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.