Finding the Fourth Proportional to 509,918.60, 764,221.80 and 310,026.80
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Solution
The fourth proportional to 509,918.60, 764,221.80 and 310,026.80 is: 464,641.30
Step by Step Solution
- Step 1: Write the proportion equation
509,918.60 : 764,221.80 = 310,026.80 : x - Step 2: Convert to fraction form
509,918.60/764,221.80 = 310,026.80/x - Step 3: Cross multiply
509,918.60x = 764,221.80 × 310,026.80 - Step 4: Simplify right side
509,918.60x = 236,929,239,144.24 - Step 5: Solve for x
x = 236,929,239,144.24/509,918.60 - Step 6: Final answer
x = 464,641.30
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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.