Finding the Fourth Proportional to 640,087.12, 883,347.06 and 368,155.08
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Solution
The fourth proportional to 640,087.12, 883,347.06 and 368,155.08 is: 508,069.44
Step by Step Solution
- Step 1: Write the proportion equation
640,087.12 : 883,347.06 = 368,155.08 : x - Step 2: Convert to fraction form
640,087.12/883,347.06 = 368,155.08/x - Step 3: Cross multiply
640,087.12x = 883,347.06 × 368,155.08 - Step 4: Simplify right side
640,087.12x = 325,208,707,542.07 - Step 5: Solve for x
x = 325,208,707,542.07/640,087.12 - Step 6: Final answer
x = 508,069.44
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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.