Finding the Fourth Proportional to 678,078.08, 935,753.28 and 376,277.12
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Solution
The fourth proportional to 678,078.08, 935,753.28 and 376,277.12 is: 519,265.49
Step by Step Solution
- Step 1: Write the proportion equation
678,078.08 : 935,753.28 = 376,277.12 : x - Step 2: Convert to fraction form
678,078.08/935,753.28 = 376,277.12/x - Step 3: Cross multiply
678,078.08x = 935,753.28 × 376,277.12 - Step 4: Simplify right side
678,078.08x = 352,102,549,228.95 - Step 5: Solve for x
x = 352,102,549,228.95/678,078.08 - Step 6: Final answer
x = 519,265.49
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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.