Finding the Fourth Proportional to 805,438.99, 1,111,509.95 and 442,886.23
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Solution
The fourth proportional to 805,438.99, 1,111,509.95 and 442,886.23 is: 611,185.27
Step by Step Solution
- Step 1: Write the proportion equation
805,438.99 : 1,111,509.95 = 442,886.23 : x - Step 2: Convert to fraction form
805,438.99/1,111,509.95 = 442,886.23/x - Step 3: Cross multiply
805,438.99x = 1,111,509.95 × 442,886.23 - Step 4: Simplify right side
805,438.99x = 492,272,450,537.95 - Step 5: Solve for x
x = 492,272,450,537.95/805,438.99 - Step 6: Final answer
x = 611,185.27
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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.