Finding the Fourth Proportional to 4,619,904.20, 6,927,782.70 and 1,779,072.20
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Solution
The fourth proportional to 4,619,904.20, 6,927,782.70 and 1,779,072.20 is: 2,667,809.78
Step by Step Solution
- Step 1: Write the proportion equation
4,619,904.20 : 6,927,782.70 = 1,779,072.20 : x - Step 2: Convert to fraction form
4,619,904.20/6,927,782.70 = 1,779,072.20/x - Step 3: Cross multiply
4,619,904.20x = 6,927,782.70 × 1,779,072.20 - Step 4: Simplify right side
4,619,904.20x = 12,325,025,609,210.94 - Step 5: Solve for x
x = 12,325,025,609,210.94/4,619,904.20 - Step 6: Final answer
x = 2,667,809.78
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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.