Finding the Fourth Proportional to 556,451.23, 767,920.08 and 314,729.07
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Solution
The fourth proportional to 556,451.23, 767,920.08 and 314,729.07 is: 434,335.95
Step by Step Solution
- Step 1: Write the proportion equation
556,451.23 : 767,920.08 = 314,729.07 : x - Step 2: Convert to fraction form
556,451.23/767,920.08 = 314,729.07/x - Step 3: Cross multiply
556,451.23x = 767,920.08 × 314,729.07 - Step 4: Simplify right side
556,451.23x = 241,686,772,612.73 - Step 5: Solve for x
x = 241,686,772,612.73/556,451.23 - Step 6: Final answer
x = 434,335.95
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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.