Finding the Fourth Proportional to 439,987.68, 607,182.84 and 238,783.68
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Solution
The fourth proportional to 439,987.68, 607,182.84 and 238,783.68 is: 329,521.39
Step by Step Solution
- Step 1: Write the proportion equation
439,987.68 : 607,182.84 = 238,783.68 : x - Step 2: Convert to fraction form
439,987.68/607,182.84 = 238,783.68/x - Step 3: Cross multiply
439,987.68x = 607,182.84 × 238,783.68 - Step 4: Simplify right side
439,987.68x = 144,985,352,968.05 - Step 5: Solve for x
x = 144,985,352,968.05/439,987.68 - Step 6: Final answer
x = 329,521.39
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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.