Finding the Fourth Proportional to 690,804.85, 1,036,207.28 and 410,177.65
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Solution
The fourth proportional to 690,804.85, 1,036,207.28 and 410,177.65 is: 615,266.48
Step by Step Solution
- Step 1: Write the proportion equation
690,804.85 : 1,036,207.28 = 410,177.65 : x - Step 2: Convert to fraction form
690,804.85/1,036,207.28 = 410,177.65/x - Step 3: Cross multiply
690,804.85x = 1,036,207.28 × 410,177.65 - Step 4: Simplify right side
690,804.85x = 425,029,064,972.40 - Step 5: Solve for x
x = 425,029,064,972.40/690,804.85 - Step 6: Final answer
x = 615,266.48
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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.