Finding the Fourth Proportional to 817,850.71, 1,226,970.06 and 256,885.21
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Solution
The fourth proportional to 817,850.71, 1,226,970.06 and 256,885.21 is: 385,388.75
Step by Step Solution
- Step 1: Write the proportion equation
817,850.71 : 1,226,970.06 = 256,885.21 : x - Step 2: Convert to fraction form
817,850.71/1,226,970.06 = 256,885.21/x - Step 3: Cross multiply
817,850.71x = 1,226,970.06 × 256,885.21 - Step 4: Simplify right side
817,850.71x = 315,190,461,526.81 - Step 5: Solve for x
x = 315,190,461,526.81/817,850.71 - Step 6: Final answer
x = 385,388.75
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.