Finding the Fourth Proportional to 1,122,089.90, 1,548,014.29 and 686,177.06
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Solution
The fourth proportional to 1,122,089.90, 1,548,014.29 and 686,177.06 is: 946,637.07
Step by Step Solution
- Step 1: Write the proportion equation
1,122,089.90 : 1,548,014.29 = 686,177.06 : x - Step 2: Convert to fraction form
1,122,089.90/1,548,014.29 = 686,177.06/x - Step 3: Cross multiply
1,122,089.90x = 1,548,014.29 × 686,177.06 - Step 4: Simplify right side
1,122,089.90x = 1,062,211,884,894.67 - Step 5: Solve for x
x = 1,062,211,884,894.67/1,122,089.90 - Step 6: Final answer
x = 946,637.07
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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.