Finding the Fourth Proportional to 679,455.34, 1,019,305.59 and 279,878.02
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Solution
The fourth proportional to 679,455.34, 1,019,305.59 and 279,878.02 is: 419,867.52
Step by Step Solution
- Step 1: Write the proportion equation
679,455.34 : 1,019,305.59 = 279,878.02 : x - Step 2: Convert to fraction form
679,455.34/1,019,305.59 = 279,878.02/x - Step 3: Cross multiply
679,455.34x = 1,019,305.59 × 279,878.02 - Step 4: Simplify right side
679,455.34x = 285,281,230,304.13 - Step 5: Solve for x
x = 285,281,230,304.13/679,455.34 - Step 6: Final answer
x = 419,867.52
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.