Finding the Fourth Proportional to 689,911.80, 1,034,867.70 and 606,967.80
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Solution
The fourth proportional to 689,911.80, 1,034,867.70 and 606,967.80 is: 910,451.70
Step by Step Solution
- Step 1: Write the proportion equation
689,911.80 : 1,034,867.70 = 606,967.80 : x - Step 2: Convert to fraction form
689,911.80/1,034,867.70 = 606,967.80/x - Step 3: Cross multiply
689,911.80x = 1,034,867.70 × 606,967.80 - Step 4: Simplify right side
689,911.80x = 628,131,371,160.06 - Step 5: Solve for x
x = 628,131,371,160.06/689,911.80 - Step 6: Final answer
x = 910,451.70
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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.