Finding the Fourth Proportional to 976,538.90, 1,347,027.36 and 645,394.30
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Solution
The fourth proportional to 976,538.90, 1,347,027.36 and 645,394.30 is: 890,250.02
Step by Step Solution
- Step 1: Write the proportion equation
976,538.90 : 1,347,027.36 = 645,394.30 : x - Step 2: Convert to fraction form
976,538.90/1,347,027.36 = 645,394.30/x - Step 3: Cross multiply
976,538.90x = 1,347,027.36 × 645,394.30 - Step 4: Simplify right side
976,538.90x = 869,363,780,088.05 - Step 5: Solve for x
x = 869,363,780,088.05/976,538.90 - Step 6: Final answer
x = 890,250.02
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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.