Finding the Fourth Proportional to 1,135,815.84, 1,567,435.87 and 619,572.03
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Solution
The fourth proportional to 1,135,815.84, 1,567,435.87 and 619,572.03 is: 855,014.86
Step by Step Solution
- Step 1: Write the proportion equation
1,135,815.84 : 1,567,435.87 = 619,572.03 : x - Step 2: Convert to fraction form
1,135,815.84/1,567,435.87 = 619,572.03/x - Step 3: Cross multiply
1,135,815.84x = 1,567,435.87 × 619,572.03 - Step 4: Simplify right side
1,135,815.84x = 971,139,416,033.54 - Step 5: Solve for x
x = 971,139,416,033.54/1,135,815.84 - Step 6: Final answer
x = 855,014.86
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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.