Finding the Fourth Proportional to 623,794.72, 860,056.80 and 520,577.68
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Solution
The fourth proportional to 623,794.72, 860,056.80 and 520,577.68 is: 717,746.33
Step by Step Solution
- Step 1: Write the proportion equation
623,794.72 : 860,056.80 = 520,577.68 : x - Step 2: Convert to fraction form
623,794.72/860,056.80 = 520,577.68/x - Step 3: Cross multiply
623,794.72x = 860,056.80 × 520,577.68 - Step 4: Simplify right side
623,794.72x = 447,726,373,612.22 - Step 5: Solve for x
x = 447,726,373,612.22/623,794.72 - Step 6: Final answer
x = 717,746.33
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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.