Finding the Fourth Proportional to 679,617.28, 1,019,451.84 and 346,804.48
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Solution
The fourth proportional to 679,617.28, 1,019,451.84 and 346,804.48 is: 520,219.95
Step by Step Solution
- Step 1: Write the proportion equation
679,617.28 : 1,019,451.84 = 346,804.48 : x - Step 2: Convert to fraction form
679,617.28/1,019,451.84 = 346,804.48/x - Step 3: Cross multiply
679,617.28x = 1,019,451.84 × 346,804.48 - Step 4: Simplify right side
679,617.28x = 353,550,465,256.24 - Step 5: Solve for x
x = 353,550,465,256.24/679,617.28 - Step 6: Final answer
x = 520,219.95
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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.