Finding the Fourth Proportional to 1,392,927.03, 1,921,531.82 and 909,774.99
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Solution
The fourth proportional to 1,392,927.03, 1,921,531.82 and 909,774.99 is: 1,255,027.40
Step by Step Solution
- Step 1: Write the proportion equation
1,392,927.03 : 1,921,531.82 = 909,774.99 : x - Step 2: Convert to fraction form
1,392,927.03/1,921,531.82 = 909,774.99/x - Step 3: Cross multiply
1,392,927.03x = 1,921,531.82 × 909,774.99 - Step 4: Simplify right side
1,392,927.03x = 1,748,161,587,776.31 - Step 5: Solve for x
x = 1,748,161,587,776.31/1,392,927.03 - Step 6: Final answer
x = 1,255,027.40
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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.