Finding the Fourth Proportional to 817,380.84, 1,226,070.18 and 256,459.08
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Solution
The fourth proportional to 817,380.84, 1,226,070.18 and 256,459.08 is: 384,688.28
Step by Step Solution
- Step 1: Write the proportion equation
817,380.84 : 1,226,070.18 = 256,459.08 : x - Step 2: Convert to fraction form
817,380.84/1,226,070.18 = 256,459.08/x - Step 3: Cross multiply
817,380.84x = 1,226,070.18 × 256,459.08 - Step 4: Simplify right side
817,380.84x = 314,436,830,378.23 - Step 5: Solve for x
x = 314,436,830,378.23/817,380.84 - Step 6: Final answer
x = 384,688.28
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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.