Finding the Fourth Proportional to 1,125,779.36, 1,688,478.84 and 315,977.94
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Solution
The fourth proportional to 1,125,779.36, 1,688,478.84 and 315,977.94 is: 473,913.53
Step by Step Solution
- Step 1: Write the proportion equation
1,125,779.36 : 1,688,478.84 = 315,977.94 : x - Step 2: Convert to fraction form
1,125,779.36/1,688,478.84 = 315,977.94/x - Step 3: Cross multiply
1,125,779.36x = 1,688,478.84 × 315,977.94 - Step 4: Simplify right side
1,125,779.36x = 533,522,065,596.79 - Step 5: Solve for x
x = 533,522,065,596.79/1,125,779.36 - Step 6: Final answer
x = 473,913.53
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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.