Finding the Fourth Proportional to 1,787,140.19, 2,466,278.42 and 971,343.63
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Solution
The fourth proportional to 1,787,140.19, 2,466,278.42 and 971,343.63 is: 1,340,467.77
Step by Step Solution
- Step 1: Write the proportion equation
1,787,140.19 : 2,466,278.42 = 971,343.63 : x - Step 2: Convert to fraction form
1,787,140.19/2,466,278.42 = 971,343.63/x - Step 3: Cross multiply
1,787,140.19x = 2,466,278.42 × 971,343.63 - Step 4: Simplify right side
1,787,140.19x = 2,395,603,828,216.75 - Step 5: Solve for x
x = 2,395,603,828,216.75/1,787,140.19 - Step 6: Final answer
x = 1,340,467.77
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1.5x scale
Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.