Finding the Fourth Proportional to 767,268.16, 1,058,805.79 and 423,118.62
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Solution
The fourth proportional to 767,268.16, 1,058,805.79 and 423,118.62 is: 583,890.31
Step by Step Solution
- Step 1: Write the proportion equation
767,268.16 : 1,058,805.79 = 423,118.62 : x - Step 2: Convert to fraction form
767,268.16/1,058,805.79 = 423,118.62/x - Step 3: Cross multiply
767,268.16x = 1,058,805.79 × 423,118.62 - Step 4: Simplify right side
767,268.16x = 448,000,444,712.81 - Step 5: Solve for x
x = 448,000,444,712.81/767,268.16 - Step 6: Final answer
x = 583,890.31
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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.