Finding the Fourth Proportional to 453,893.80, 680,840.70 and 313,925.80
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Solution
The fourth proportional to 453,893.80, 680,840.70 and 313,925.80 is: 470,888.70
Step by Step Solution
- Step 1: Write the proportion equation
453,893.80 : 680,840.70 = 313,925.80 : x - Step 2: Convert to fraction form
453,893.80/680,840.70 = 313,925.80/x - Step 3: Cross multiply
453,893.80x = 680,840.70 × 313,925.80 - Step 4: Simplify right side
453,893.80x = 213,733,461,420.06 - Step 5: Solve for x
x = 213,733,461,420.06/453,893.80 - Step 6: Final answer
x = 470,888.70
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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.