Finding the Fourth Proportional to 618,122.63, 931,395.95 and 508,263.95
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Solution
The fourth proportional to 618,122.63, 931,395.95 and 508,263.95 is: 765,859.33
Step by Step Solution
- Step 1: Write the proportion equation
618,122.63 : 931,395.95 = 508,263.95 : x - Step 2: Convert to fraction form
618,122.63/931,395.95 = 508,263.95/x - Step 3: Cross multiply
618,122.63x = 931,395.95 × 508,263.95 - Step 4: Simplify right side
618,122.63x = 473,394,977,362.70 - Step 5: Solve for x
x = 473,394,977,362.70/618,122.63 - Step 6: Final answer
x = 765,859.33
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.