Finding the Fourth Proportional to 607,207.80, 910,811.70 and 213,223.80
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Solution
The fourth proportional to 607,207.80, 910,811.70 and 213,223.80 is: 319,835.70
Step by Step Solution
- Step 1: Write the proportion equation
607,207.80 : 910,811.70 = 213,223.80 : x - Step 2: Convert to fraction form
607,207.80/910,811.70 = 213,223.80/x - Step 3: Cross multiply
607,207.80x = 910,811.70 × 213,223.80 - Step 4: Simplify right side
607,207.80x = 194,206,731,758.46 - Step 5: Solve for x
x = 194,206,731,758.46/607,207.80 - Step 6: Final answer
x = 319,835.70
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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.