Finding the Fourth Proportional to 430,829.60, 646,935.60 and 291,207.20
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Solution
The fourth proportional to 430,829.60, 646,935.60 and 291,207.20 is: 437,278.00
Step by Step Solution
- Step 1: Write the proportion equation
430,829.60 : 646,935.60 = 291,207.20 : x - Step 2: Convert to fraction form
430,829.60/646,935.60 = 291,207.20/x - Step 3: Cross multiply
430,829.60x = 646,935.60 × 291,207.20 - Step 4: Simplify right side
430,829.60x = 188,392,304,656.32 - Step 5: Solve for x
x = 188,392,304,656.32/430,829.60 - Step 6: Final answer
x = 437,278.00
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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.