Finding the Fourth Proportional to 840,153.24, 1,159,072.74 and 486,301.32
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Solution
The fourth proportional to 840,153.24, 1,159,072.74 and 486,301.32 is: 670,899.76
Step by Step Solution
- Step 1: Write the proportion equation
840,153.24 : 1,159,072.74 = 486,301.32 : x - Step 2: Convert to fraction form
840,153.24/1,159,072.74 = 486,301.32/x - Step 3: Cross multiply
840,153.24x = 1,159,072.74 × 486,301.32 - Step 4: Simplify right side
840,153.24x = 563,658,603,438.02 - Step 5: Solve for x
x = 563,658,603,438.02/840,153.24 - Step 6: Final answer
x = 670,899.76
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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.