Finding the Fourth Proportional to 783,423.98, 1,081,455.84 and 529,119.62
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Solution
The fourth proportional to 783,423.98, 1,081,455.84 and 529,119.62 is: 730,408.46
Step by Step Solution
- Step 1: Write the proportion equation
783,423.98 : 1,081,455.84 = 529,119.62 : x - Step 2: Convert to fraction form
783,423.98/1,081,455.84 = 529,119.62/x - Step 3: Cross multiply
783,423.98x = 1,081,455.84 × 529,119.62 - Step 4: Simplify right side
783,423.98x = 572,219,503,107.58 - Step 5: Solve for x
x = 572,219,503,107.58/783,423.98 - Step 6: Final answer
x = 730,408.46
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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.