Finding the Fourth Proportional to 628,675.08, 943,013.40 and 155,353.20
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Solution
The fourth proportional to 628,675.08, 943,013.40 and 155,353.20 is: 233,029.99
Step by Step Solution
- Step 1: Write the proportion equation
628,675.08 : 943,013.40 = 155,353.20 : x - Step 2: Convert to fraction form
628,675.08/943,013.40 = 155,353.20/x - Step 3: Cross multiply
628,675.08x = 943,013.40 × 155,353.20 - Step 4: Simplify right side
628,675.08x = 146,500,149,332.88 - Step 5: Solve for x
x = 146,500,149,332.88/628,675.08 - Step 6: Final answer
x = 233,029.99
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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.