Finding the Fourth Proportional to 747,574.49, 1,031,652.81 and 408,042.74
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Solution
The fourth proportional to 747,574.49, 1,031,652.81 and 408,042.74 is: 563,098.99
Step by Step Solution
- Step 1: Write the proportion equation
747,574.49 : 1,031,652.81 = 408,042.74 : x - Step 2: Convert to fraction form
747,574.49/1,031,652.81 = 408,042.74/x - Step 3: Cross multiply
747,574.49x = 1,031,652.81 × 408,042.74 - Step 4: Simplify right side
747,574.49x = 420,958,441,900.23 - Step 5: Solve for x
x = 420,958,441,900.23/747,574.49 - Step 6: Final answer
x = 563,098.99
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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.