Finding the Fourth Proportional to 1,122,611.04, 1,549,259.43 and 686,892.06
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Solution
The fourth proportional to 1,122,611.04, 1,549,259.43 and 686,892.06 is: 947,945.43
Step by Step Solution
- Step 1: Write the proportion equation
1,122,611.04 : 1,549,259.43 = 686,892.06 : x - Step 2: Convert to fraction form
1,122,611.04/1,549,259.43 = 686,892.06/x - Step 3: Cross multiply
1,122,611.04x = 1,549,259.43 × 686,892.06 - Step 4: Simplify right side
1,122,611.04x = 1,064,174,001,347.13 - Step 5: Solve for x
x = 1,064,174,001,347.13/1,122,611.04 - Step 6: Final answer
x = 947,945.43
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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.