Finding the Fourth Proportional to 1,553,421.78, 2,330,485.56 and 474,030.81
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Solution
The fourth proportional to 1,553,421.78, 2,330,485.56 and 474,030.81 is: 711,153.90
Step by Step Solution
- Step 1: Write the proportion equation
1,553,421.78 : 2,330,485.56 = 474,030.81 : x - Step 2: Convert to fraction form
1,553,421.78/2,330,485.56 = 474,030.81/x - Step 3: Cross multiply
1,553,421.78x = 2,330,485.56 × 474,030.81 - Step 4: Simplify right side
1,553,421.78x = 1,104,721,957,700.10 - Step 5: Solve for x
x = 1,104,721,957,700.10/1,553,421.78 - Step 6: Final answer
x = 711,153.90
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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.