Finding the Fourth Proportional to 665,727.06, 918,702.09 and 363,921.06
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Solution
The fourth proportional to 665,727.06, 918,702.09 and 363,921.06 is: 502,210.38
Step by Step Solution
- Step 1: Write the proportion equation
665,727.06 : 918,702.09 = 363,921.06 : x - Step 2: Convert to fraction form
665,727.06/918,702.09 = 363,921.06/x - Step 3: Cross multiply
665,727.06x = 918,702.09 × 363,921.06 - Step 4: Simplify right side
665,727.06x = 334,335,038,417.02 - Step 5: Solve for x
x = 334,335,038,417.02/665,727.06 - Step 6: Final answer
x = 502,210.38
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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.