Finding the Fourth Proportional to 630,435.20, 945,652.80 and 555,639.80
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Solution
The fourth proportional to 630,435.20, 945,652.80 and 555,639.80 is: 833,459.70
Step by Step Solution
- Step 1: Write the proportion equation
630,435.20 : 945,652.80 = 555,639.80 : x - Step 2: Convert to fraction form
630,435.20/945,652.80 = 555,639.80/x - Step 3: Cross multiply
630,435.20x = 945,652.80 × 555,639.80 - Step 4: Simplify right side
630,435.20x = 525,442,332,661.44 - Step 5: Solve for x
x = 525,442,332,661.44/630,435.20 - Step 6: Final answer
x = 833,459.70
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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.