Finding the Fourth Proportional to 564,416.15, 778,894.79 and 306,293.10
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Solution
The fourth proportional to 564,416.15, 778,894.79 and 306,293.10 is: 422,684.75
Step by Step Solution
- Step 1: Write the proportion equation
564,416.15 : 778,894.79 = 306,293.10 : x - Step 2: Convert to fraction form
564,416.15/778,894.79 = 306,293.10/x - Step 3: Cross multiply
564,416.15x = 778,894.79 × 306,293.10 - Step 4: Simplify right side
564,416.15x = 238,570,097,288.90 - Step 5: Solve for x
x = 238,570,097,288.90/564,416.15 - Step 6: Final answer
x = 422,684.75
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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.