Finding the Fourth Proportional to 1,653,670.10, 2,480,359.35 and 455,485.70
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Solution
The fourth proportional to 1,653,670.10, 2,480,359.35 and 455,485.70 is: 683,188.39
Step by Step Solution
- Step 1: Write the proportion equation
1,653,670.10 : 2,480,359.35 = 455,485.70 : x - Step 2: Convert to fraction form
1,653,670.10/2,480,359.35 = 455,485.70/x - Step 3: Cross multiply
1,653,670.10x = 2,480,359.35 × 455,485.70 - Step 4: Simplify right side
1,653,670.10x = 1,129,768,214,786.30 - Step 5: Solve for x
x = 1,129,768,214,786.30/1,653,670.10 - Step 6: Final answer
x = 683,188.39
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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.