Finding the Fourth Proportional to 913,259.21, 1,369,848.11 and 239,325.44
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Solution
The fourth proportional to 913,259.21, 1,369,848.11 and 239,325.44 is: 358,977.49
Step by Step Solution
- Step 1: Write the proportion equation
913,259.21 : 1,369,848.11 = 239,325.44 : x - Step 2: Convert to fraction form
913,259.21/1,369,848.11 = 239,325.44/x - Step 3: Cross multiply
913,259.21x = 1,369,848.11 × 239,325.44 - Step 4: Simplify right side
913,259.21x = 327,839,493,613.05 - Step 5: Solve for x
x = 327,839,493,613.05/913,259.21 - Step 6: Final answer
x = 358,977.49
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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.