Finding the Fourth Proportional to 578,266.80, 866,525.40 and 489,037.20
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Solution
The fourth proportional to 578,266.80, 866,525.40 and 489,037.20 is: 732,815.99
Step by Step Solution
- Step 1: Write the proportion equation
578,266.80 : 866,525.40 = 489,037.20 : x - Step 2: Convert to fraction form
578,266.80/866,525.40 = 489,037.20/x - Step 3: Cross multiply
578,266.80x = 866,525.40 × 489,037.20 - Step 4: Simplify right side
578,266.80x = 423,763,155,344.88 - Step 5: Solve for x
x = 423,763,155,344.88/578,266.80 - Step 6: Final answer
x = 732,815.99
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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.