Finding the Fourth Proportional to 939,927.84, 1,411,291.44 and 380,055.84
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Solution
The fourth proportional to 939,927.84, 1,411,291.44 and 380,055.84 is: 570,649.71
Step by Step Solution
- Step 1: Write the proportion equation
939,927.84 : 1,411,291.44 = 380,055.84 : x - Step 2: Convert to fraction form
939,927.84/1,411,291.44 = 380,055.84/x - Step 3: Cross multiply
939,927.84x = 1,411,291.44 × 380,055.84 - Step 4: Simplify right side
939,927.84x = 536,369,553,714.01 - Step 5: Solve for x
x = 536,369,553,714.01/939,927.84 - Step 6: Final answer
x = 570,649.71
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Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.