Finding the Fourth Proportional to 489,351.40, 732,860.70 and 489,351.40
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Solution
The fourth proportional to 489,351.40, 732,860.70 and 489,351.40 is: 732,860.70
Step by Step Solution
- Step 1: Write the proportion equation
489,351.40 : 732,860.70 = 489,351.40 : x - Step 2: Convert to fraction form
489,351.40/732,860.70 = 489,351.40/x - Step 3: Cross multiply
489,351.40x = 732,860.70 × 489,351.40 - Step 4: Simplify right side
489,351.40x = 358,626,409,549.98 - Step 5: Solve for x
x = 358,626,409,549.98/489,351.40 - Step 6: Final answer
x = 732,860.70
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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.