Finding the Fourth Proportional to 748,624.80, 1,122,937.20 and 630,526.80
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Solution
The fourth proportional to 748,624.80, 1,122,937.20 and 630,526.80 is: 945,790.20
Step by Step Solution
- Step 1: Write the proportion equation
748,624.80 : 1,122,937.20 = 630,526.80 : x - Step 2: Convert to fraction form
748,624.80/1,122,937.20 = 630,526.80/x - Step 3: Cross multiply
748,624.80x = 1,122,937.20 × 630,526.80 - Step 4: Simplify right side
748,624.80x = 708,041,999,316.96 - Step 5: Solve for x
x = 708,041,999,316.96/748,624.80 - Step 6: Final answer
x = 945,790.20
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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.