Finding the Fourth Proportional to 1,408,137.12, 2,112,382.80 and 688,502.88
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Solution
The fourth proportional to 1,408,137.12, 2,112,382.80 and 688,502.88 is: 1,032,840.92
Step by Step Solution
- Step 1: Write the proportion equation
1,408,137.12 : 2,112,382.80 = 688,502.88 : x - Step 2: Convert to fraction form
1,408,137.12/2,112,382.80 = 688,502.88/x - Step 3: Cross multiply
1,408,137.12x = 2,112,382.80 × 688,502.88 - Step 4: Simplify right side
1,408,137.12x = 1,454,381,641,462.46 - Step 5: Solve for x
x = 1,454,381,641,462.46/1,408,137.12 - Step 6: Final answer
x = 1,032,840.92
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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.