Finding the Fourth Proportional to 917,236.80, 1,374,688.80 and 442,900.80
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Solution
The fourth proportional to 917,236.80, 1,374,688.80 and 442,900.80 is: 663,787.99
Step by Step Solution
- Step 1: Write the proportion equation
917,236.80 : 1,374,688.80 = 442,900.80 : x - Step 2: Convert to fraction form
917,236.80/1,374,688.80 = 442,900.80/x - Step 3: Cross multiply
917,236.80x = 1,374,688.80 × 442,900.80 - Step 4: Simplify right side
917,236.80x = 608,850,769,271.04 - Step 5: Solve for x
x = 608,850,769,271.04/917,236.80 - Step 6: Final answer
x = 663,787.99
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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.