Finding the Fourth Proportional to 679,627.08, 937,677.60 and 446,987.70
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Solution
The fourth proportional to 679,627.08, 937,677.60 and 446,987.70 is: 616,706.38
Step by Step Solution
- Step 1: Write the proportion equation
679,627.08 : 937,677.60 = 446,987.70 : x - Step 2: Convert to fraction form
679,627.08/937,677.60 = 446,987.70/x - Step 3: Cross multiply
679,627.08x = 937,677.60 × 446,987.70 - Step 4: Simplify right side
679,627.08x = 419,130,353,765.52 - Step 5: Solve for x
x = 419,130,353,765.52/679,627.08 - Step 6: Final answer
x = 616,706.38
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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.