Finding the Fourth Proportional to 709,543.80, 1,064,315.70 and 336,295.80
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Solution
The fourth proportional to 709,543.80, 1,064,315.70 and 336,295.80 is: 504,443.70
Step by Step Solution
- Step 1: Write the proportion equation
709,543.80 : 1,064,315.70 = 336,295.80 : x - Step 2: Convert to fraction form
709,543.80/1,064,315.70 = 336,295.80/x - Step 3: Cross multiply
709,543.80x = 1,064,315.70 × 336,295.80 - Step 4: Simplify right side
709,543.80x = 357,924,899,784.06 - Step 5: Solve for x
x = 357,924,899,784.06/709,543.80 - Step 6: Final answer
x = 504,443.70
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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.