Finding the Fourth Proportional to 492,693.76, 679,917.12 and 266,339.68
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Solution
The fourth proportional to 492,693.76, 679,917.12 and 266,339.68 is: 367,548.61
Step by Step Solution
- Step 1: Write the proportion equation
492,693.76 : 679,917.12 = 266,339.68 : x - Step 2: Convert to fraction form
492,693.76/679,917.12 = 266,339.68/x - Step 3: Cross multiply
492,693.76x = 679,917.12 × 266,339.68 - Step 4: Simplify right side
492,693.76x = 181,088,908,167.32 - Step 5: Solve for x
x = 181,088,908,167.32/492,693.76 - Step 6: Final answer
x = 367,548.61
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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.