Finding the Fourth Proportional to 473,119.80, 709,679.70 and 379,807.80
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Solution
The fourth proportional to 473,119.80, 709,679.70 and 379,807.80 is: 569,711.70
Step by Step Solution
- Step 1: Write the proportion equation
473,119.80 : 709,679.70 = 379,807.80 : x - Step 2: Convert to fraction form
473,119.80/709,679.70 = 379,807.80/x - Step 3: Cross multiply
473,119.80x = 709,679.70 × 379,807.80 - Step 4: Simplify right side
473,119.80x = 269,541,885,561.66 - Step 5: Solve for x
x = 269,541,885,561.66/473,119.80 - Step 6: Final answer
x = 569,711.70
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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.