Finding the Fourth Proportional to 708,612.66, 977,904.12 and 436,860.09
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Solution
The fourth proportional to 708,612.66, 977,904.12 and 436,860.09 is: 602,878.42
Step by Step Solution
- Step 1: Write the proportion equation
708,612.66 : 977,904.12 = 436,860.09 : x - Step 2: Convert to fraction form
708,612.66/977,904.12 = 436,860.09/x - Step 3: Cross multiply
708,612.66x = 977,904.12 × 436,860.09 - Step 4: Simplify right side
708,612.66x = 427,207,281,874.57 - Step 5: Solve for x
x = 427,207,281,874.57/708,612.66 - Step 6: Final answer
x = 602,878.42
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1.5x scale
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.