Finding the Fourth Proportional to 1,437,421.83, 2,155,666.29 and 477,619.68
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Solution
The fourth proportional to 1,437,421.83, 2,155,666.29 and 477,619.68 is: 716,274.53
Step by Step Solution
- Step 1: Write the proportion equation
1,437,421.83 : 2,155,666.29 = 477,619.68 : x - Step 2: Convert to fraction form
1,437,421.83/2,155,666.29 = 477,619.68/x - Step 3: Cross multiply
1,437,421.83x = 2,155,666.29 × 477,619.68 - Step 4: Simplify right side
1,437,421.83x = 1,029,588,643,616.59 - Step 5: Solve for x
x = 1,029,588,643,616.59/1,437,421.83 - Step 6: Final answer
x = 716,274.53
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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.