Finding the Fourth Proportional to 1,639,813.60, 2,457,408.21 and 774,325.06
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Solution
The fourth proportional to 1,639,813.60, 2,457,408.21 and 774,325.06 is: 1,160,395.77
Step by Step Solution
- Step 1: Write the proportion equation
1,639,813.60 : 2,457,408.21 = 774,325.06 : x - Step 2: Convert to fraction form
1,639,813.60/2,457,408.21 = 774,325.06/x - Step 3: Cross multiply
1,639,813.60x = 2,457,408.21 × 774,325.06 - Step 4: Simplify right side
1,639,813.60x = 1,902,832,759,652.74 - Step 5: Solve for x
x = 1,902,832,759,652.74/1,639,813.60 - Step 6: Final answer
x = 1,160,395.77
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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.