Finding the Fourth Proportional to 1,069,020.18, 1,475,199.54 and 639,537.12
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Solution
The fourth proportional to 1,069,020.18, 1,475,199.54 and 639,537.12 is: 882,532.33
Step by Step Solution
- Step 1: Write the proportion equation
1,069,020.18 : 1,475,199.54 = 639,537.12 : x - Step 2: Convert to fraction form
1,069,020.18/1,475,199.54 = 639,537.12/x - Step 3: Cross multiply
1,069,020.18x = 1,475,199.54 × 639,537.12 - Step 4: Simplify right side
1,069,020.18x = 943,444,865,236.93 - Step 5: Solve for x
x = 943,444,865,236.93/1,069,020.18 - Step 6: Final answer
x = 882,532.33
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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.