Finding the Fourth Proportional to 1,657,138.08, 2,485,303.20 and 459,029.28
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Solution
The fourth proportional to 1,657,138.08, 2,485,303.20 and 459,029.28 is: 688,432.03
Step by Step Solution
- Step 1: Write the proportion equation
1,657,138.08 : 2,485,303.20 = 459,029.28 : x - Step 2: Convert to fraction form
1,657,138.08/2,485,303.20 = 459,029.28/x - Step 3: Cross multiply
1,657,138.08x = 2,485,303.20 × 459,029.28 - Step 4: Simplify right side
1,657,138.08x = 1,140,826,938,477.70 - Step 5: Solve for x
x = 1,140,826,938,477.70/1,657,138.08 - Step 6: Final answer
x = 688,432.03
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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.