Finding the Fourth Proportional to 761,415.08, 1,050,864.71 and 439,062.21
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Solution
The fourth proportional to 761,415.08, 1,050,864.71 and 439,062.21 is: 605,970.38
Step by Step Solution
- Step 1: Write the proportion equation
761,415.08 : 1,050,864.71 = 439,062.21 : x - Step 2: Convert to fraction form
761,415.08/1,050,864.71 = 439,062.21/x - Step 3: Cross multiply
761,415.08x = 1,050,864.71 × 439,062.21 - Step 4: Simplify right side
761,415.08x = 461,394,979,788.30 - Step 5: Solve for x
x = 461,394,979,788.30/761,415.08 - Step 6: Final answer
x = 605,970.38
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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.