Finding the Fourth Proportional to 968,931.48, 1,335,739.70 and 681,559.68
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Solution
The fourth proportional to 968,931.48, 1,335,739.70 and 681,559.68 is: 939,577.60
Step by Step Solution
- Step 1: Write the proportion equation
968,931.48 : 1,335,739.70 = 681,559.68 : x - Step 2: Convert to fraction form
968,931.48/1,335,739.70 = 681,559.68/x - Step 3: Cross multiply
968,931.48x = 1,335,739.70 × 681,559.68 - Step 4: Simplify right side
968,931.48x = 910,386,319,087.50 - Step 5: Solve for x
x = 910,386,319,087.50/968,931.48 - Step 6: Final answer
x = 939,577.60
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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.