Finding the Fourth Proportional to 1,387,890.48, 2,080,417.68 and 787,584
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Solution
The fourth proportional to 1,387,890.48, 2,080,417.68 and 787,584 is: 1,180,571.31
Step by Step Solution
- Step 1: Write the proportion equation
1,387,890.48 : 2,080,417.68 = 787,584 : x - Step 2: Convert to fraction form
1,387,890.48/2,080,417.68 = 787,584/x - Step 3: Cross multiply
1,387,890.48x = 2,080,417.68 × 787,584 - Step 4: Simplify right side
1,387,890.48x = 1,638,503,678,085.12 - Step 5: Solve for x
x = 1,638,503,678,085.12/1,387,890.48 - Step 6: Final answer
x = 1,180,571.31
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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.