Finding the Fourth Proportional to 790,437.36, 1,090,803.75 and 427,860.10
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Solution
The fourth proportional to 790,437.36, 1,090,803.75 and 427,860.10 is: 590,447.04
Step by Step Solution
- Step 1: Write the proportion equation
790,437.36 : 1,090,803.75 = 427,860.10 : x - Step 2: Convert to fraction form
790,437.36/1,090,803.75 = 427,860.10/x - Step 3: Cross multiply
790,437.36x = 1,090,803.75 × 427,860.10 - Step 4: Simplify right side
790,437.36x = 466,711,401,555.38 - Step 5: Solve for x
x = 466,711,401,555.38/790,437.36 - Step 6: Final answer
x = 590,447.04
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1.5x scale
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.