Finding the Fourth Proportional to 1,318,032.61, 1,818,963.44 and 745,126.09
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Solution
The fourth proportional to 1,318,032.61, 1,818,963.44 and 745,126.09 is: 1,028,318.35
Step by Step Solution
- Step 1: Write the proportion equation
1,318,032.61 : 1,818,963.44 = 745,126.09 : x - Step 2: Convert to fraction form
1,318,032.61/1,818,963.44 = 745,126.09/x - Step 3: Cross multiply
1,318,032.61x = 1,818,963.44 × 745,126.09 - Step 4: Simplify right side
1,318,032.61x = 1,355,357,110,421.33 - Step 5: Solve for x
x = 1,355,357,110,421.33/1,318,032.61 - Step 6: Final answer
x = 1,028,318.35
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.