Finding the Fourth Proportional to 740,304.40, 1,021,620.42 and 400,772.68
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Solution
The fourth proportional to 740,304.40, 1,021,620.42 and 400,772.68 is: 553,066.49
Step by Step Solution
- Step 1: Write the proportion equation
740,304.40 : 1,021,620.42 = 400,772.68 : x - Step 2: Convert to fraction form
740,304.40/1,021,620.42 = 400,772.68/x - Step 3: Cross multiply
740,304.40x = 1,021,620.42 × 400,772.68 - Step 4: Simplify right side
740,304.40x = 409,437,553,666.13 - Step 5: Solve for x
x = 409,437,553,666.13/740,304.40 - Step 6: Final answer
x = 553,066.49
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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.