Finding the Fourth Proportional to 1,110,509.33, 1,666,430.42 and 479,422.53
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Solution
The fourth proportional to 1,110,509.33, 1,666,430.42 and 479,422.53 is: 719,421.50
Step by Step Solution
- Step 1: Write the proportion equation
1,110,509.33 : 1,666,430.42 = 479,422.53 : x - Step 2: Convert to fraction form
1,110,509.33/1,666,430.42 = 479,422.53/x - Step 3: Cross multiply
1,110,509.33x = 1,666,430.42 × 479,422.53 - Step 4: Simplify right side
1,110,509.33x = 798,924,285,628.25 - Step 5: Solve for x
x = 798,924,285,628.25/1,110,509.33 - Step 6: Final answer
x = 719,421.50
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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.