Finding the Fourth Proportional to 394,705.80, 592,058.70 and 315,973.80
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Solution
The fourth proportional to 394,705.80, 592,058.70 and 315,973.80 is: 473,960.70
Step by Step Solution
- Step 1: Write the proportion equation
394,705.80 : 592,058.70 = 315,973.80 : x - Step 2: Convert to fraction form
394,705.80/592,058.70 = 315,973.80/x - Step 3: Cross multiply
394,705.80x = 592,058.70 × 315,973.80 - Step 4: Simplify right side
394,705.80x = 187,075,037,262.06 - Step 5: Solve for x
x = 187,075,037,262.06/394,705.80 - Step 6: Final answer
x = 473,960.70
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.