Finding the Fourth Proportional to 612,088.80, 918,133.20 and 413,023.20
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Solution
The fourth proportional to 612,088.80, 918,133.20 and 413,023.20 is: 619,534.80
Step by Step Solution
- Step 1: Write the proportion equation
612,088.80 : 918,133.20 = 413,023.20 : x - Step 2: Convert to fraction form
612,088.80/918,133.20 = 413,023.20/x - Step 3: Cross multiply
612,088.80x = 918,133.20 × 413,023.20 - Step 4: Simplify right side
612,088.80x = 379,210,312,290.24 - Step 5: Solve for x
x = 379,210,312,290.24/612,088.80 - Step 6: Final answer
x = 619,534.80
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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.