Finding the Fourth Proportional to 1,681,842.94, 2,320,215.15 and 1,028,497.53
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Solution
The fourth proportional to 1,681,842.94, 2,320,215.15 and 1,028,497.53 is: 1,418,881.33
Step by Step Solution
- Step 1: Write the proportion equation
1,681,842.94 : 2,320,215.15 = 1,028,497.53 : x - Step 2: Convert to fraction form
1,681,842.94/2,320,215.15 = 1,028,497.53/x - Step 3: Cross multiply
1,681,842.94x = 2,320,215.15 × 1,028,497.53 - Step 4: Simplify right side
1,681,842.94x = 2,386,335,539,242.50 - Step 5: Solve for x
x = 2,386,335,539,242.50/1,681,842.94 - Step 6: Final answer
x = 1,418,881.33
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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.