Finding the Fourth Proportional to 1,219,041.88, 1,828,683.10 and 420,218.28
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Solution
The fourth proportional to 1,219,041.88, 1,828,683.10 and 420,218.28 is: 630,368.88
Step by Step Solution
- Step 1: Write the proportion equation
1,219,041.88 : 1,828,683.10 = 420,218.28 : x - Step 2: Convert to fraction form
1,219,041.88/1,828,683.10 = 420,218.28/x - Step 3: Cross multiply
1,219,041.88x = 1,828,683.10 × 420,218.28 - Step 4: Simplify right side
1,219,041.88x = 768,446,066,947.07 - Step 5: Solve for x
x = 768,446,066,947.07/1,219,041.88 - Step 6: Final answer
x = 630,368.88
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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.