Finding the Fourth Proportional to 669,804.84, 924,309.35 and 383,318.78
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Solution
The fourth proportional to 669,804.84, 924,309.35 and 383,318.78 is: 528,967.70
Step by Step Solution
- Step 1: Write the proportion equation
669,804.84 : 924,309.35 = 383,318.78 : x - Step 2: Convert to fraction form
669,804.84/924,309.35 = 383,318.78/x - Step 3: Cross multiply
669,804.84x = 924,309.35 × 383,318.78 - Step 4: Simplify right side
669,804.84x = 354,305,127,763.05 - Step 5: Solve for x
x = 354,305,127,763.05/669,804.84 - Step 6: Final answer
x = 528,967.70
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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.