Finding the Fourth Proportional to 678,070.08, 935,742.24 and 376,269.12
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Solution
The fourth proportional to 678,070.08, 935,742.24 and 376,269.12 is: 519,254.45
Step by Step Solution
- Step 1: Write the proportion equation
678,070.08 : 935,742.24 = 376,269.12 : x - Step 2: Convert to fraction form
678,070.08/935,742.24 = 376,269.12/x - Step 3: Cross multiply
678,070.08x = 935,742.24 × 376,269.12 - Step 4: Simplify right side
678,070.08x = 352,090,909,191.63 - Step 5: Solve for x
x = 352,090,909,191.63/678,070.08 - Step 6: Final answer
x = 519,254.45
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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.