Finding the Fourth Proportional to 644,435.64, 889,569.18 and 429,497.28
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Solution
The fourth proportional to 644,435.64, 889,569.18 and 429,497.28 is: 592,871.53
Step by Step Solution
- Step 1: Write the proportion equation
644,435.64 : 889,569.18 = 429,497.28 : x - Step 2: Convert to fraction form
644,435.64/889,569.18 = 429,497.28/x - Step 3: Cross multiply
644,435.64x = 889,569.18 × 429,497.28 - Step 4: Simplify right side
644,435.64x = 382,067,543,181.83 - Step 5: Solve for x
x = 382,067,543,181.83/644,435.64 - Step 6: Final answer
x = 592,871.53
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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.