Finding the Fourth Proportional to 724,603.44, 999,983.97 and 402,313.55
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Solution
The fourth proportional to 724,603.44, 999,983.97 and 402,313.55 is: 555,210.03
Step by Step Solution
- Step 1: Write the proportion equation
724,603.44 : 999,983.97 = 402,313.55 : x - Step 2: Convert to fraction form
724,603.44/999,983.97 = 402,313.55/x - Step 3: Cross multiply
724,603.44x = 999,983.97 × 402,313.55 - Step 4: Simplify right side
724,603.44x = 402,307,100,913.79 - Step 5: Solve for x
x = 402,307,100,913.79/724,603.44 - Step 6: Final answer
x = 555,210.03
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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.