Finding the Fourth Proportional to 664,949.80, 997,424.70 and 507,485.80
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Solution
The fourth proportional to 664,949.80, 997,424.70 and 507,485.80 is: 761,228.70
Step by Step Solution
- Step 1: Write the proportion equation
664,949.80 : 997,424.70 = 507,485.80 : x - Step 2: Convert to fraction form
664,949.80/997,424.70 = 507,485.80/x - Step 3: Cross multiply
664,949.80x = 997,424.70 × 507,485.80 - Step 4: Simplify right side
664,949.80x = 506,178,871,819.26 - Step 5: Solve for x
x = 506,178,871,819.26/664,949.80 - Step 6: Final answer
x = 761,228.70
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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.