Finding the Fourth Proportional to 790,352.95, 1,090,686.99 and 427,776.75
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Solution
The fourth proportional to 790,352.95, 1,090,686.99 and 427,776.75 is: 590,331.87
Step by Step Solution
- Step 1: Write the proportion equation
790,352.95 : 1,090,686.99 = 427,776.75 : x - Step 2: Convert to fraction form
790,352.95/1,090,686.99 = 427,776.75/x - Step 3: Cross multiply
790,352.95x = 1,090,686.99 × 427,776.75 - Step 4: Simplify right side
790,352.95x = 466,570,535,849.48 - Step 5: Solve for x
x = 466,570,535,849.48/790,352.95 - Step 6: Final answer
x = 590,331.87
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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.