Finding the Fourth Proportional to 1,007,971.74, 1,390,934.97 and 555,262.74
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Solution
The fourth proportional to 1,007,971.74, 1,390,934.97 and 555,262.74 is: 766,226.21
Step by Step Solution
- Step 1: Write the proportion equation
1,007,971.74 : 1,390,934.97 = 555,262.74 : x - Step 2: Convert to fraction form
1,007,971.74/1,390,934.97 = 555,262.74/x - Step 3: Cross multiply
1,007,971.74x = 1,390,934.97 × 555,262.74 - Step 4: Simplify right side
1,007,971.74x = 772,334,362,604.02 - Step 5: Solve for x
x = 772,334,362,604.02/1,007,971.74 - Step 6: Final answer
x = 766,226.21
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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.