Finding the Fourth Proportional to 346,713.70, 520,070.56 and 307,347.70
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Solution
The fourth proportional to 346,713.70, 520,070.56 and 307,347.70 is: 461,021.56
Step by Step Solution
- Step 1: Write the proportion equation
346,713.70 : 520,070.56 = 307,347.70 : x - Step 2: Convert to fraction form
346,713.70/520,070.56 = 307,347.70/x - Step 3: Cross multiply
346,713.70x = 520,070.56 × 307,347.70 - Step 4: Simplify right side
346,713.70x = 159,842,490,453.71 - Step 5: Solve for x
x = 159,842,490,453.71/346,713.70 - Step 6: Final answer
x = 461,021.56
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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.