Finding the Fourth Proportional to 640,060.08, 883,315.80 and 353,577.84
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Solution
The fourth proportional to 640,060.08, 883,315.80 and 353,577.84 is: 487,955.59
Step by Step Solution
- Step 1: Write the proportion equation
640,060.08 : 883,315.80 = 353,577.84 : x - Step 2: Convert to fraction form
640,060.08/883,315.80 = 353,577.84/x - Step 3: Cross multiply
640,060.08x = 883,315.80 × 353,577.84 - Step 4: Simplify right side
640,060.08x = 312,320,892,601.87 - Step 5: Solve for x
x = 312,320,892,601.87/640,060.08 - Step 6: Final answer
x = 487,955.59
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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.