Finding the Fourth Proportional to 539,420.32, 805,028.83 and 479,634.76
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Solution
The fourth proportional to 539,420.32, 805,028.83 and 479,634.76 is: 715,805.09
Step by Step Solution
- Step 1: Write the proportion equation
539,420.32 : 805,028.83 = 479,634.76 : x - Step 2: Convert to fraction form
539,420.32/805,028.83 = 479,634.76/x - Step 3: Cross multiply
539,420.32x = 805,028.83 × 479,634.76 - Step 4: Simplify right side
539,420.32x = 386,119,809,670.13 - Step 5: Solve for x
x = 386,119,809,670.13/539,420.32 - Step 6: Final answer
x = 715,805.09
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Why These Related Problems?
These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.