Finding the Fourth Proportional to 682,768.44, 942,389.10 and 414,721.08
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Solution
The fourth proportional to 682,768.44, 942,389.10 and 414,721.08 is: 572,417.53
Step by Step Solution
- Step 1: Write the proportion equation
682,768.44 : 942,389.10 = 414,721.08 : x - Step 2: Convert to fraction form
682,768.44/942,389.10 = 414,721.08/x - Step 3: Cross multiply
682,768.44x = 942,389.10 × 414,721.08 - Step 4: Simplify right side
682,768.44x = 390,828,625,332.23 - Step 5: Solve for x
x = 390,828,625,332.23/682,768.44 - Step 6: Final answer
x = 572,417.53
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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.