Finding the Fourth Proportional to 785,622.24, 1,084,128.17 and 480,209.99
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Solution
The fourth proportional to 785,622.24, 1,084,128.17 and 480,209.99 is: 662,671.12
Step by Step Solution
- Step 1: Write the proportion equation
785,622.24 : 1,084,128.17 = 480,209.99 : x - Step 2: Convert to fraction form
785,622.24/1,084,128.17 = 480,209.99/x - Step 3: Cross multiply
785,622.24x = 1,084,128.17 × 480,209.99 - Step 4: Simplify right side
785,622.24x = 520,609,173,454.30 - Step 5: Solve for x
x = 520,609,173,454.30/785,622.24 - Step 6: Final answer
x = 662,671.12
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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.