Finding the Fourth Proportional to 668,070.81, 920,701.26 and 474,486.93
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Solution
The fourth proportional to 668,070.81, 920,701.26 and 474,486.93 is: 653,913.79
Step by Step Solution
- Step 1: Write the proportion equation
668,070.81 : 920,701.26 = 474,486.93 : x - Step 2: Convert to fraction form
668,070.81/920,701.26 = 474,486.93/x - Step 3: Cross multiply
668,070.81x = 920,701.26 × 474,486.93 - Step 4: Simplify right side
668,070.81x = 436,860,714,304.53 - Step 5: Solve for x
x = 436,860,714,304.53/668,070.81 - Step 6: Final answer
x = 653,913.79
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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.