Finding the Fourth Proportional to 785,198.70, 1,177,798.05 and 705,482.55
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Solution
The fourth proportional to 785,198.70, 1,177,798.05 and 705,482.55 is: 1,058,223.83
Step by Step Solution
- Step 1: Write the proportion equation
785,198.70 : 1,177,798.05 = 705,482.55 : x - Step 2: Convert to fraction form
785,198.70/1,177,798.05 = 705,482.55/x - Step 3: Cross multiply
785,198.70x = 1,177,798.05 × 705,482.55 - Step 4: Simplify right side
785,198.70x = 830,915,971,699.03 - Step 5: Solve for x
x = 830,915,971,699.03/785,198.70 - Step 6: Final answer
x = 1,058,223.83
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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.