Finding the Fourth Proportional to 712,917.84, 1,069,376.76 and 239,603.20
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Solution
The fourth proportional to 712,917.84, 1,069,376.76 and 239,603.20 is: 359,404.80
Step by Step Solution
- Step 1: Write the proportion equation
712,917.84 : 1,069,376.76 = 239,603.20 : x - Step 2: Convert to fraction form
712,917.84/1,069,376.76 = 239,603.20/x - Step 3: Cross multiply
712,917.84x = 1,069,376.76 × 239,603.20 - Step 4: Simplify right side
712,917.84x = 256,226,093,701.63 - Step 5: Solve for x
x = 256,226,093,701.63/712,917.84 - Step 6: Final answer
x = 359,404.80
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Similar ratio
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.