Finding the Fourth Proportional to 606,421.80, 909,632.70 and 212,437.80
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Solution
The fourth proportional to 606,421.80, 909,632.70 and 212,437.80 is: 318,656.70
Step by Step Solution
- Step 1: Write the proportion equation
606,421.80 : 909,632.70 = 212,437.80 : x - Step 2: Convert to fraction form
606,421.80/909,632.70 = 212,437.80/x - Step 3: Cross multiply
606,421.80x = 909,632.70 × 212,437.80 - Step 4: Simplify right side
606,421.80x = 193,240,369,596.06 - Step 5: Solve for x
x = 193,240,369,596.06/606,421.80 - Step 6: Final answer
x = 318,656.70
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1.5x scale
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.