Finding the Fourth Proportional to 832,429.55, 1,148,760.98 and 450,464.53
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Solution
The fourth proportional to 832,429.55, 1,148,760.98 and 450,464.53 is: 621,645.49
Step by Step Solution
- Step 1: Write the proportion equation
832,429.55 : 1,148,760.98 = 450,464.53 : x - Step 2: Convert to fraction form
832,429.55/1,148,760.98 = 450,464.53/x - Step 3: Cross multiply
832,429.55x = 1,148,760.98 × 450,464.53 - Step 4: Simplify right side
832,429.55x = 517,476,072,390.05 - Step 5: Solve for x
x = 517,476,072,390.05/832,429.55 - Step 6: Final answer
x = 621,645.49
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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.