Finding the Fourth Proportional to 638,076.18, 880,607.14 and 476,650.82
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Solution
The fourth proportional to 638,076.18, 880,607.14 and 476,650.82 is: 657,824.46
Step by Step Solution
- Step 1: Write the proportion equation
638,076.18 : 880,607.14 = 476,650.82 : x - Step 2: Convert to fraction form
638,076.18/880,607.14 = 476,650.82/x - Step 3: Cross multiply
638,076.18x = 880,607.14 × 476,650.82 - Step 4: Simplify right side
638,076.18x = 419,742,115,378.86 - Step 5: Solve for x
x = 419,742,115,378.86/638,076.18 - Step 6: Final answer
x = 657,824.46
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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.